Upbeat and super-positive teen Marsh Merriwether learns a valuable lesson when his best friend is accused of bullying. Meanwhile, Cassandra gets ready for the "It Gets Better After High School" high school dance.

The pressure is on at High School USA when the gang prepares to take the SAT exam, so they resort to pill-popping measures. Meanwhile, Blackstein joins the school's gay club to beef up his extracurricular activities, but he must hide the fact that he is straight in order to stay in the club and get into college.

Marsh meets his hero, The Candy Diet Guru Garrett Philanders.

Cassandra has an identity crisis when she discovers she's adopted; the gang learns that their band is popular in China.

Amber gets upset when she learns that her mom is an amateur porn actor, and Marsh must reunite the two former BFFs.

High School USA! is about to lose all of its funding unless the gang can find a way to get test scores up.

Amber learns she's pregnant and must make a tough decision about whether she has a choice on what to choose to do.

The gang is given a class assignment to live one weekend without cell phones and computers, to experience life in the early '90s.

Cassandra and Amber run for student council president and Marsh questions the school's new self-protection policy.

Marsh is worried for Brad's safety when Brad has a Spring Break fling with an Amish Girl.

Marsh realizes he has a hard time dealing with death once Cassandra's dad passes away.