Justice League Action: Season 1, Episode 34

1 - 34: The Cube Root

Firestorm attends the opening of the new Science Center established by Martin Stein's old college roommate Mister Terrific until it gets crashed by Calculator. When Calculator hacks Mister Terrific's T-spheres and separates Firestorm back into Ronnie Raymond and Martin Stein, it's up to Martin Stein and Mister Terrific to work together to free Ronnie Raymond and defeat Calculator.