Gunpla builder Fumina Hoshino’s Powered GM Cardigan launches and is joined by a CGUE and Zaku III for a massive battle in an Axis space level. Fumina is able to destroy an Asshimar and penetrate the interior of Axis, but the Zaku III is destroyed along the way. The GM Cardigan endures heavy damage from a large wave of mobile suits and breaks into a chamber with a gigantic Musha Gundam. However, Fumina is grabbed from behind by a Val-Walo, which destroys her unit. In a Tokyo alley, teenager Sekai Kamiki scares several punks with his martial arts skills and asks them if they’ve seen a girl in a picture he’s carrying. The punks run to the police for help, who end up taking Sekai into custody. At Seiho Academy, the principal announces that Yuuma Kousaka’s Lightning Gundam won the Artistic Gunpla Contest. Fumina recalls Yuuma telling her that he won’t play Gunpla Battle anymore because he’s lost interest. In a hallway, she encounters Plastic Model Club President Daiki Miyaga, who asks her again to join his club. He tells her that the Gunpla Battle Club still exists only because one of their students won the World Tournament seven years ago. He adds that she’s the club’s only member, which she attributes to his club stealing them all away. Miyaga also notes that her club loses in the first round every year and that Gunpla Battle is pointless because it damages Gunpla you’ve spent so much time building properly. Senior Mirai Kamiki is called to the teacher’s office over the loudspeaker. At the police station, Sekai explains that he was protecting himself with Jigen Haoh martial arts, which they’ve never heard of. Mirai arrives to pick up her younger brother and apologizes for the trouble he caused. Fumina tells a teacher that she wants to enter the Gunpla Battle Championship, but he reminds her that she needs a team of three people. Sekai enters the office and tells the teacher that he’s a month late transferring because he was on a trip with his master. Sekai asks Fumina about martial arts clubs, but she tells him there aren’t any. She then asks him if he likes Gunpla, but he’s never heard of them or Gundam, which she can’t believe. Fumina tells Sekai he should try Gunpla Battle, but when she shows him a Gunpla, he dismisses it as a toy and tries to leave.
After tying Sekai to a chair with rope, Fumina explains Gunpla Battle and starts up the battle system. Sekai is impressed by the shiny glow of Plavsky particles and how real the desert battlefield looks. Fumina launches the GM Cardigan and fights a computer simulated Hi-Mock, which she destroys with a beam saber. Fumina asks Sekai if he wants to try, and he agrees. He looks at the Gunpla on the shelf and picks up the the World Tournament trophy, which has the names Sei Iori and Reiji on it. He then pops open the bottom of the trophy and finds a Dom hidden inside. Fumina tells him he can use that in the game, although she wasn’t aware the club had a Dom. Sekai starts his practice run to learn the controls, and Fumina shows him the Dom’s hover mode. He ends up sliding out of the ring, which causes the kit to fall off the table. They both reach for the kit to catch it and fall on each other. Miyaga walks in and misunderstands what’s going on. He then ridicules Fumina for trying to recruit an amateur for the tournament. Sekai thinks that Miyaga is rude, and Miyaga challenges him to a battle. Fumina objects because Sekai just started today, but Miyaga reminds her that she only has two months until the qualifier. Ramba Ral walks by and watches as Fumina and Sekai begin their battle against Miyaga’s AEU Enact Commander Type. Fumina sees that the Gunpla is well built, and Miyaga brags that any member of his club could built a kit like this in two days. Sekai moves forward and fires, but his bazooka is destroyed by Miyaga. Miyaga rushes in with a saber to attack Sekai, but Fumina protects him. Miyaga then reveals to Fumina that the student council is considering shutting her club down for being inferior at battling. The two trade fire, but Sekai jumps in with his heat saber and destroys Miyaga’s saber. He then tosses aside his weapons to use martial arts, which Miyaga laughs at. Sekai catches and smashes Miyaga’s blade and lands a heavy punch that disables the Enact. Fumina is shocked by Sekai’s skills, and Ral thinks he’s the second coming of Reiji. Sekai is then sniped from behind by Yuuma’s Lightning Gundam, and Ral recognizes him as China’s younger brother. Sekai charges forward and sustains more damage from Yuuma’s shots. He tells Fumina that he understands the Gunpla’s loud roar, but he’s hit with a shot that destroys the Dom. However, the Build Burning Gundam emerges from the flames and moves in a way that reminds Yuuma of the Star Build Strike Gundam. Sekai punches Yuuma with a blast of wind that is felt by everyone outside the game. However, the battle is interrupted when Mirai arrives and drags Sekai away. Fumina thinks to herself that this is the moment when team Try Fighters first met.
The debut episode of Build Fighters Try mirrors the opening of its predecessor in more ways than one. In the original, Sei Iori needed a pilot due to his lack of skills. In this show, Fumina Hoshino needs a three person team to fight in the tournament. Sekai Kamiki, complete with his red hair and martial arts, is basically a cross between Reiji and Domon Kasshu. He’s even asking around about his sister with a picture like Domon was. Seven years have passed since the first series, and unfortunately Gunpla Battle isn’t so big at Sei’s alma mater. Even China’s younger brother Yuuma has given up on battling to pursue building. Fumina is shocked that Sekai doesn’t know anything about Gundam and jokes that he can’t be from another planet, which is a reference to Reiji actually being from another planet. The Build Burning Gundam makes its debut at the end, and between its name and it being hidden inside a trophy, it’s a safe bet that Sei built it. Like the original series, this one highlights tons of obscure mobile suits, including ones from MSV and MS-X. There’s nothing particularly original happening here, but the episode is well constructed and I’m curious how these new team battles will play out. So far, Try looks to be embracing the fun and carefree attitude of its predecessor.