Sex, secrets and shenanigans occur at Ally's rental beach house in Rosarito, Mexico.

Some senior pranks manage to cause chaos. Jenna's vow to not think about Matty ends up being tested after she overhears a worrying secret.

Jenna's forced to throw Tamara a party to celebrate her fake engagement. Meanwhile, Gabby reveals a secret about Matty that sends Jenna in search of the truth.