Fourth of an eight-part series that follows three pairs of friends on backpacking journeys around the world. Andrew and Matt are in Tobago, where they try water-skiing and deep sea fishing. But while Andrew reels in barracuda, Matt fails to find his sea legs. Over in Morocco, street hustlers offering a wide range of chemical stimulants follow Ade and Paul on the streets of Tangier, from where they visit the Rif Mountains to check out the imperial city of Fez. Thailand's paradise island, Ko Samui, provides the perfect break from life on the road for Helen and Alison, who bask in the sun, sea and sand before goingto a buffalo fight.