Solar made an algorithm where he transports all of them to the major turning point in the past of each of their lives

Thunderstorm's was when his mother died in a car crash. They all managed to save her (which made Thunderstorm become happier and more open) and were transported to another scenario

Cyclone's was when his father left them. They managed to fix the relationship of his parents (which led to Cyclone having a younger brother) and were transported to another scenario

Quake's was when he was kidnapped. They managed to save past Quiake in time (which made Quake feeling lighter and more mentally stable) and they were transported to another scenario

Blaze's and Ice's were the same, and it was when they got separated from each other when their parents divorced. They couldn't convince the parents to come back to each other, but they managed to convince them to let the twins see each other even after the divorce (which made the two closer than ever)

Thorn's was when his father became an alcoholic. They managed to talk him out of the addiction (which made Thorn come back to his innocent self). His mother was dead and they couldn't change that

Solar's was the biggest surprise. They were transported at the scene of Solar's birth. They didn't know what to do, and Solar just had that grim face like he knew.

The only way to change his future was to stop him from being born.

His mother hated him at first sight because he was born from a man who cheated on her.

But they were surprised to know that Solar had a twin named Light. But the mother killed him and made Solar take the blame. She made Solar suffer until she left Solar on his own and went with another man.