Marissa Cuevas

Chase, Adam, Bree and Leo find out Sebastian has secretly formed an evil rebellion to exact revenge for his father's death.

When Jack and Jerry save the lead singer of their favourite band, they become his bodyguards, but they find out that one of the other members of the band is out to get him.

Amy and Sheldon try to minimise stress from wedding planning by using maths; Raj distances himself from Howard after he thinks his best friend is actually hurting his confidence.

Jennifer feels jealous when Adam gets credit for raising Gretchen, even though he has not been responsible.