Sean regrets passing up on a typical "lads holiday" as he discovers Dylan has a secret plan. Things look up for the pair as they meet a couple of American girls but things get out of hand at a festival on the Great Wall.
May has to go to Hangzhou for her cousin's wedding and Ashley insists Greg and Dylan tag along too. The family reunion isn't what they expected as Ashley is the centre of attention. Sean hitches a lift with a creepy couple.
The girls volunteer at an orphanage in Vietnam, but May is shocked at how much work that involves. Greg tries to move on from his ex-wife by pursuing a nurse at the orphanage and Sean tries to heat things up with Ashley.
Greg leads the gang to a legendary Full Moon Party in Thailand, but an unexpected face from the past and a stomach bug threaten to ruin everyone's fun. Dylan makes a rash decision.
The group set off on a trek but get lost in the jungle. Lauren learns the truth about Dylan and Ashley, Sean is subject to some unexpected romantic attention and Greg temporarily loses his hearing.
The group head to Kuala Lumpur to visit an old school friend of Greg - who receives a tempting job offer. Ashley receives some bad news from college. Dylan tries to save his friendship with Sean.
The gang sign up to become extras in a Malaysian zombie film and Greg fulfills his childhood dream to be a policeman. The love triangle between Dylan, Ashley and Sean comes to an explosive climax.
Dylan is taken to a Buddhist Monastery after a surprise encounter with the travel writer he impersonated in Vietnam. May receives a shock visit from her mother while Ashley and Sean confront their feelings for one another.
