The Inbetweeners return in feature-length style as hapless ‘fwends’ Neil, Will and Simon receive an invite from Jay to join him on his gap year in Australia - promising them it is the ''the sex capital of the world''. With their lives now rather dull compared to their chaotic school days and legendary lads holiday, it's an offer they can't refuse. Once again, they put growing up temporarily on-hold, and embark on the backpacking trip of a lifetime in an awful car…