A welcome back party was a party made in to celebrate the return of the Bremin Four, after they had gone missing.
After the news interview with the Bremin Four, the boys attended a party with their friends and family. Andy attempted to get closer with Ellen, due to his experience with her alternate counterpart. He also gives Ellen the necklace as the alternate Ellen had instructed, however the real world Ellen returns none of his affection. Meanwhile Sam is on rough terms with Mia, who is having trust issues. Ellen instead reconciles with her boyfriend Felix, leading Andy to become jealous. He tries to impress her by showing off his powers, by making a ball of water form a love heart shape, however he loses control of the water and it splashes all over him. This leads everyone at the party to laugh at Andy, before Felix approaches him with a towel and scolds Andy for risking the exposure of his powers.