Dylan is taken to a Buddhist monastery after a surprise meeting with Sam Bevan, the vengeful travel writer he impersonated in Vietnam, and Ashley and Sean confront their feelings.
The gang sign up to be extras in a Malaysian zombie film, with Greg fulfilling his childhood dream of being a policeman. The love triangle reaches an explosive climax.
The gang heads to Kuala Lumpur, where Greg gets a tempting job opportunity, Ashley receives bad news from college and Dylan tries to save his friendship with Sean.
The gang goes on a trek and get lost in the Malaysian jungle, where Lauren discovers the truth about Dylan and Ashley, while Sean receives unexpected romantic attention.
Greg leads the gang to a legendary Full Moon Party in Thailand, but an unexpected face from the past threatens to ruin everyone's fun.
The girls volunteer at a Vietnamese orphanage, but May is surprised by the amount of hard work involved. Dylan and Sean pretend to be travel writers to get a room in a luxury hotel.