Admiral Tarung asks the gang if they really want to take the Toughness Test. BoBoiBoy agrees and Yaya and Ying reaffirm that the consequences for failing are punishment and expulsion from TAPOPS. Tarung shows them the location of their Toughness Test: Planet Volcania, a planet filled with active volcanoes and rivers of molten lava. Koko Ci explains that it's a simulation in which their task is to retrieve a Power Sphere hidden on that planet. Gopal expresses relief that it's only a simulation, prompting a sly grin from Tarung.
In response to a question asked by Ying, Koko Ci points out the Power Sphere on a peak of the volcano in Planet Volcania. Tarung explains that 2 teams will be involved in retrieving the Power Sphere: Team A and B, Team B being BoBoiBoy’s gang. Team A remains unnamed but are revealed to already be on Planet Volcania. Tarung calls Ochobot to the room (whose appearance shocks the gang since he returned on Earth on Episode 7) to teleport Team B to the planet. As the gang stare in awe of the portal, Tarung loses his patience and flings BoBoiBoy and Gopal through, releasing a flying robot to monitor them during the Toughness Test.
As they take in their new surroundings, BoBoiBoy sees the volcano where the Power Sphere is located in the distance. Ying worries about the task ahead and Gopal tells them it will be easy, inadvertently setting off a geyser and getting hurt. As more geysers surrounding them start going off, BoBoiBoy tells them to run. The flying robot observes them and Tarung laughs at their retreat, thinking that they'll fail the test. BoBoiBoy and the gang ran until they reach a lava river at the volcano base. Ying uses her power to jump across the rocks protruding from the lava and Yaya uses her gravitational lift to lift the rocks from the lava so BoBoiBoy and Gopal can get across. Unbeknownst to the others, Fang notices the two shadowy figures in the distance and follows them instead.
Meanwhile, Gopal is about to jump across but doesn't see the lava about to erupt under him. BoBoiBoy pushes him out of the way and on to the other side, getting burned by the lava himself. BoBoiBoy's Power Band starts to glitch after coming into contact with the lava. He wonders how he was still hurt despite the test being a simulation, prompting Tarung to reveal that it's real not a simulation. Koko Ci apologizes for lying and admits that those tests are usually conducted via simulation. BoBoiBoy points out that it would be dangerous for them if the tests are conducted in a real-life environment but Tarung invites to them drop out and fail if it's too much for them. After chiding Gopal for wanting to quit, BoBoiBoy finally notices that Fang is missing. Tarung tells them that Fang is already ahead of them so they continue their journey to the volcano.
Once they reach the top, Yaya finds the Power Sphere. BoBoiBoy tries to get the Power Sphere but is ambushed by Fang, shocking everyone. Fang reveals that he is in fact a member of Team A--not Team B as they originally thought--and that his goal is to prevent Team B from retrieving the Power Sphere. Gopal doubts that Fang can be called a team as he is only one person, to which Fang responded by calling the other two members that he saw earlier. Fang introduces them as Sai and Shielda. BoBoiBoy shyly introduces himself but Gopal pulled him back, saying that they were their enemies. BoBoiBoy argued that they were just doing their job.
Suddenly, a shield flies past Gopal, cutting several rocks into pieces and flying back to Sai like a boomerang. His skill amazes BoBoiBoy and Gopal, their behaviour only prompting Team A to dub them as weak and easy targets. Enraged, Yaya and Ying attack Team A, only for Shielda to block, absorb and reflect their attacks. Koko Ci attempts to warn them about Shielda's power but Tarung interrupts and scolds him for exposing the information. Gopal did not believe that the shield could reflect anything, so he threw a rock at it, which reflected back to him, hitting him on the stomach. Gopal then yelled "You think you're so great?!", which was later absorbed and reflected back by Shielda's shield. Gopal then fell in despair after hearing his own insults reflected back at him.
As Ying tried to encourage Gopal, she was injured by Sai's shield. Yaya became furious and using her gravity powers, she lifted up all of the nearby rocks and threw at Sai and Shielda. They defended themselves using their shields. Ying tried to rise up and told BoBoiBoy to get the Power Sphere, he asks if she will be fine but Ying replied that he should not worry, and explained that the test will end by getting the Power Sphere. BoBoiBoy transformed into BoBoiBoy Wind and flew towards the volcano. Fang saw him and decided to stop him. He summoned his Shadow Falcon and tried to attack him with Shadow Hands.
Meanwhile, Shielda was gaining at Yaya despite her efforts on slowing her down by throwing rocks. Shielda used her shield to hit the ground, sending a trail of rocks which knocked Yaya off. Sai then attacked her and Ying using Zig-Zag Shield Throw. Ying attempted to slow it down but to Gopal's shock, the shield was unaffected by Ying's slow-mo field. Sai's shield collided on the ground, creating an explosion that defeated Yaya and Ying.
BoBoiBoy Wind was shocked to see them defeated. Fang was shocked too, and he hesitated. He asked BoBoiBoy to surrender and knocked him down into the volcano. BoBoiBoy Wind slammed onto a rocky ground in the volcano. Koko Ci asked Tarung to stop the test but he refused.
As Sai and Shielda walked towards Yaya and Ying, Gopal stood in front them, trying to protect his friends. He tried to use his Food Blast but it was reflected by Shielda's shield. Gopal called BoBoiBoy for help.
As BoBoiBoy turned back to normal, Fang came up to him, asking whether he's okay. BoBoiBoy asked him why he's doing this, which Fang apologized that he was under orders. Sai and Shielda came in. BoBoiBoy asked where Gopal was, in which Sai showed him that he was defeated and lying on the ground with Yaya and Ying. Tears began to well up in BoBoiBoy's eyes.
Sai and Shielda decided to finish BoBoiBoy, but Fang told them that it was enough and they had defeated them. Sai mocked Fang that since when he became weak as he felt sorry for them. Sai's mockery enraged BoBoiBoy. He stood up as his body was releasing smoke. Feeling the urge to prove that who was the weaker ones, BoBoiBoy transformed into BoBoiBoy Fire. This shocked Koko Ci while Tarung felt amused.
BoBoiBoy Fire sent his Flaming Punch at Fang, which he blocked it with Shadow Hand. BoBoiBoy Fire then went behind Fang and sent out a Flaming Kick, which was blocked by Shielda and reflected to a nearby rock. Sai threw his shield and controlled it, trying to hit BoBoiBoy Fire but he dodged them all. As he was distracted, Shielda slammed her shield onto him and into a wall. Fang yelled "Enough!", fearing BoBoiBoy would be severely injured.
However, her shield glowed and BoBoiBoy Fire punched off of him. He used Rapid-fire Attack on Team A. Fang, Sai and Shielda defended themselves. As he continued his attack, Yaya, Ying and Gopal woke up. Yaya and Gopal witnessed the fight. BoBoiBoy Fire released a Red-hot Flaming Punch, which knocked Team A off. Ying told Yaya and Gopal to get the Power Sphere.
The volcano began to shake violently. Koko Ci realized that the volcano had became unstable due to BoBoiBoy Fire's attack. As Yaya and Ying went to the Power Sphere, Gopal asked Admiral Tarung to abort the test as the volcano was about to erupt.
BoBoiBoy Fire stood victoriously and laughed, asking Team A who was the weakling now. Fang told him to calm down and remember who he was. Shielda surrendered, but Sai wasn't giving up. He used Maximum Spin and threw his shield with full force towards BoBoiBoy Fire but he dodged it. Sai then turned the shield around, attempting to hit him from behind. However, BoBoiBoy Fire caught the shield with his own hand, stopping it. That shocked Team A.
He laughed and set it on fire. He threw it back to Sai. As Sai was about to face defeat, a teleportation portal opened and the shield stopped in front of him. It turned out that Tarung had stopped the shield with his teeth. Tarung announced that the test was over, which was a relief to Team A. BoBoiBoy Fire argued that they've crossed the line. Tarung told him to calm down and took deep breaths. As BoBoiBoy Fire slowly calmed down, Ochobot told him that the test was over and he did not need to be angry anymore. With that, BoBoiBoy turned back to normal.
As more rocks fell around the area, Koko Ci called out Yaya, Ying and, Gopal. They responded as they ran towards his direction. Everyone entered the portal and made it to TAPOPS Space Station. The computer scene showed the volcano erupted and sent a shockwave that disabled the camera droid left there.
BoBoiBoy apologized to Fang, Sai and, Shielda for not being able to control his emotions. Gopal said it was okay at least they were safe and sound. Fang apologized too and Shielda admitted that they had gone too far. Though, Sai praised BoBoiBoy, saying that he was truly outstanding. However, Tarung scolded them that they had failed to retrieve the Power Sphere, so they had failed the test and would be expelled.
Then, Gopal showed Tarung the Power Sphere that he was hiding, which shocked him. Gopal explained that it was Ying's plan for leading Yaya and him to retrieve the Power Sphere. Tarung said that this was truly outstanding. He announced that BoBoiBoy and his friends had passed the TAPOPS Toughness Test, much to everyone's joy.
- Cici Ko
- FireBot (Debut)
- Sai (Debut)
- Shielda (Debut)
- When Koko Ci points out the members in Team B, he excludes Fang, which is a hint that Fang is in the other team.
- BoBoiBoy Fire shouldn't technically be a new element as stated by Gopal because BoBoiBoy already unlocked and used this element in BoBoiBoy Season 3 and BoBoiBoy: The Movie. Furthermore, at the beginning of the series, the Space Pirate's readout of BoBoiBoy reveals that he had the potential to have seven different elemental forms.
- An easy theory is the fact that BoBoiBoy Galaxy being a soft reboot and the elemental powers are to be reintroduced to new audiences who have not seen the original series.
- An in-universe theory is that Gopal assumed BoBoiBoy Fire was a new element due to the change of clothes and the fact that he was seeing the battle afar. Fang and Yaya look like they recognize BoBoiBoy Fire, while Ying does not see the battle. It is reasonable for Koko Ci to see BoBoiBoy Fire as a new element as he did not see him in battle during the events of The Movie.
- Although lava is not technically fire, when BoBoiBoy is burned by the lava eruption, his Power Band glitches and absorbs the fire element.
- However, since BoBoiBoy and his friends are on an alien volcanic planet, the lava there is likely to have the same properties as Fire.
- Near the end of the episode, Gopal has his left arm on his back for a period of time, which hints that he, Yaya and Ying have gotten the Power Sphere.
- Since the original series, BoBoiBoy's transformation into BoBoiBoy Fire has been speculated to be caused by stress and/or anger. This theory is reinforced in this episode when BoBoiBoy, enraged at Shielda's comment calling him and his friends weak, transforms into BoBoiBoy Fire.
- The scene when BoBoiBoy Fire catches Sai's shield that is thrown towards him and he throws it back to Sai is similar to the scene when Bucky catches Captain America's shield and throws it back to him in "Captain America: The Winter Soldier".
- This episode gained 1 million views within 10 hours and 2 million views within 24 hours, setting a new record in Monsta channel.