Following a riot in Central Africa outside the British Embassy where they are working, Oz sustains an injury to his backside whilst sheltering a female embassy official with whom he has been having sex, from a bomb. The Lads gets air-lifted to safety and end up in an Australian embassy in Laos, southeast Asia to undertake more embassy work. As the lads debate their future, a letter arrives from Bomber: he has decided it is time to hang up his trowel for good and settle down with Paulie and Lainie in Arizona.The lads realise that they are drifting apart as a group and decide to cap off their whole adventure with a blow out in Bangkok.