The Justice Brigade was visiting an observatory when the shelf of collected space items caught Jake's eyes. Jake went down to look at them, but Daisy grabbed his shirt and threw him to the ground before he got too close. Daisy said, "Don't even think about it. You can't touch those things. Not even the scientists who collected them know what's in those jars." Jake said, "Fine." Daisy and Jake both left and went to see the giant telescope. Daisy sat in the seat, looked in the giant telescope, and looked up into space. When she looked, she saw a meteor coming their way. Daisy said, "That's not good." Jake said, "What's not good?" Jake looked through the telescope and saw a meteor, too. When he saw it, he was shocked. He backed up toward the shelf of collected space items and hit it. Then, a jar wobbled off the shelf, fell on Jake's head, and broke. When the container got busted, the goo inside splattered all over Jake. Daisy and Hannah tried to clean him up, but the goo was too icky and sticky. Hannah said, "Jake, are you ok?" Jake said, "I feel fine; I'm just a little messy." Daisy said, "Good. Now let's go home."
The Justice Brigade left the observatory, and Jake started to glow green when they did. Daisy, Hannah, and Frank all saw the green glow. They looked behind them and saw Jake glowing green. Daisy said, "Jake?" Hannah said, "He looks a little funny." Frank said, "Sure does." Then Jake started to grow, and his skin began to turn green. When his transformation was complete, he became a giant green space monster, and The Justice Brigade freaked over him. Iceboy looked at The Justice Brigade and started to attack them. The Justice Brigade all flew away, and Iceboy headed downtown. Daisy said, "Ok, Iceboy's an alien freak because of the goo that landed on him, and there's a meteor heading toward Earth." Hannah said, "We have to save Iceboy." Daisy said, "But we also must save the Earth. So, here's what we're going to do."
Sungirl took Heatgirl back to their house and gave her special armor to match her superhero costume. Sungirl said, "I had one of these specially made for each of us in case we needed to go up into space. Well, now the time has come. Aquaboy and I will go downtown and try to stop Iceboy. You will head into space and stop the meteor from destroying the Earth." Heatgirl said, "But meteors are full of flames. How can I help?" Sungirl said, "By absorbing its flames and destroying it, now go. Come on, Aquaboy, let's go stop Iceboy."
Heatgirl went into space without a helmet since she could survive in space without one, while Sungirl and Aquaboy headed downtown. When they got downtown, they saw Iceboy terrorizing the city. Once they found him, Sungirl blasted him with her Sun Ray. Iceboy looked at where that blast came from and saw Sungirl and Aquaboy. Sungirl said, "Hey, Ugly, you looked better when you were on our side." Iceboy's eyes started to glow green, and he shot Sungirl away with green beams from his eyes. He tried to do the same thing to Aquaboy but jumped out of the way and landed on his feet. Then Iceboy grabbed a stop sign, yanked it out of the ground, and threw it at Aquaboy. When it came to him, Aquaboy used his powers to blow it right back at him with a super strong wind. When the stop sign hit him, Iceboy got slammed against a building. Iceboy saw Sungirl and Aquaboy flying up to him. Iceboy jumped over them, but they stopped, turned around, and flew in the opposite direction. When they got to Iceboy, Sungirl tried to kick him, but Iceboy grabbed her, threw her down, and Sungirl hit Aquaboy.
Meanwhile, Heatgirl was up in space looking for the meteor. When she found it, she made her hands glow red, pointed them at the meteor, and started to absorb the meteor's flames. Heatgirl absorbed as much power as possible. Then the stress got to her, and Heatgirl thought her powers were too much to handle. When she finished, the meteor just looked like a regular old asteroid. Heatgirl started to get hot inside her spacesuit because her absorbed power started to melt her feet. Heatgirl started to panic, but she thought hard, and all the lava from her feet went back into her body, and she became whole again. Then Heatgirl flew to the meteor, stood on it, and started to feel weak. Heatgirl looked at her hand, and some lava emerged. Heatgirl got scared but thought hard, and the lava on her hand returned to her body.
While Heatgirl was in space, Sungirl started feeling worried about her on Earth, so she called her on her communication watch she had installed into her suit. Heatgirl sat down on the meteor, and her body started to melt. Then her watch beeped, and she answered it. Sungirl said, "Heatgirl, are you ok?" Heatgirl said, "A little weak in the knees. And I don't even have knees anymore." Heatgirl aimed her watch at her legs and showed Sungirl she was melting. Heatgirl screamed, saying, "This might be a bad time to tell you. But my powers are unstable. They sometimes come out of my body and try to destroy me. And I think they're going to succeed." Heatgirl's face started to melt, and when she got down on her hands, her hands turned into lava, and she started to melt completely. Heatgirl said, "Bye, Sungirl. Thanks for..." Sungirl said, "Oh no." Then Heatgirl melted entirely, and the meteor began to crack when her body melted. Sungirl called Heatgirl on her communicator again and said, "Heatgirl, come in, Heatgirl."
When a small piece of the meteor landed on Earth, Sungirl saw a lava puddle and Heatgirl's communicator and mask next to it. Sungirl said, "No, Heatgirl, I failed you. I should have never let you go into space alone. I'm so sorry." Sungirl started to cry, but then she got an idea. Sungirl reached into her pocket and brought out a purple formula she had created. Aquaboy said, "What's that?" Sungirl said, "Stabilizer. I created it myself. I never tested it, but this is an emergency." Sungirl grabbed Heatgirl's mask and saw she had left a hair on it. Sungirl then took the hair off the face cover, dropped it in the lava, and poured the Stabilizer. Once she did, all the lava came together and made Hannah whole again. Sungirl said, "Hey, it worked." Hannah then put her mask back on and shot her flame powers up into the sky. Then she stopped and looked at Sungirl. Heatgirl said, "I'm me again...." Heatgirl hugged Sungirl and said, "I knew you wouldn't let me down." Aquaboy then flew by the girls while being chased by Iceboy and said, "A little help, please?" Heatgirl said, "With pleasure."
Heatgirl flew up to Iceboy and tried to punch Iceboy, but Iceboy dodged it and smacked her away. Heatgirl then got up, kept firing her heat powers at Iceboy, and missed on purpose. Iceboy said, "Missed me." Heatgirl flew up to Iceboy and punched him hard. Then Iceboy shot green beans from his eyes and blasted Heatgirl away. Iceboy got hit by Sungirl's Sun Ray, and Heatgirl grabbed his shirt and threw him. Aquaboy then kicked Iceboy up, and Sungirl caught him. Then Heatgirl tied him up with a rope, and they flew him home.
Once they got home, they took their superhero costumes off, and Daisy took Jake to their lab, hoping to return him to normal. Daisy said, "If any emergencies arise, handle them without me. I'll run a few tests and try to find a cure for Jake's condition." Daisy strapped Jake onto a table, and when she read the data about his condition, she wrote out the data to reverse the process and made an antidote for Jake. Then she fed it to him, and when he drank it, his skin returned to normal, and he got his old powers back.
After Jake returned to normal, Daisy showed Hannah and Frank she succeeded in returning Jake to normal. Then, they all celebrated because Sungirl saved Heatgirl and Iceboy and returned them to normal. While celebrating, a giant monster started to destroy the city, and they saw their signal in the sky. The Justice Brigade all looked at each other, put their masks on, and flew out of their house in superhero costumes to take the rampaging monster out.
The End