Ritchie is a Glaswegian chancer with low hopes and no prospects. Disillusioned with city life, he goes undercover at a Highland conservation centre to make his fortune as an illegal pearl fisher with the help of his two hapless and accident prone mates, Danny and Fraser. Here he meets Beth, a pretty English conservationist passionate about saving endangered mussels from the clutches of pearl thieves in the Scottish Highlands. Falling for her instantly, Ritchie must beat off competition in the form of Highland Ranger Ethan, a smooth talking American Adonis convinced that Beth can't resist his charms forever. After the success of pearl fishing attracts the unwanted attentions of old school Glaswegian mobster Gavin and his work at the centre leads him to question his true motivations, Ritchie must risk life and limb to save the Highlands from ecological disaster and win Beth's heart.

Neil, Will and Simon receive an invite from Jay to join him in Australia whilst on his gap year, who promises them it's ''the sex capital of the world''. With their lives now rather dull compared to their hedonistic 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 a backpacking holiday of a lifetime in an awful car, inspired by Peter Andre's 'Mysterious Girl'. Will soon finds himself battling with the lads to do something cultural, whilst they focus their attention on drinking, girls, and annoying fellow travelers.

Sammy and Ray, leatherback turtles and friends forever, are enjoying an atoll's water and sand, shepherding new hatchlings Ricky and Ella out to sea. Suddenly, a poacher swoops in and ships them off to be part of a spectacular aquarium show for tourists in Dubai. The kingpin of the place, Big D the seahorse, enlists them in his plans for a great escape. But with their new friends Jimbo the bug-eyed blob fish and Lulu the snippy lobster, Annabel the sweet Octopus, and a whole family of penguins, Sammy and Ray hatch breakout plans of their own. That is when little Ricky and Ella arrive, determined to break in to rescue them. After a series of thrilling adventures and narrow escapes, our heroes head south to meet up with Shelly, Sammy's first and only love.