Under the Radar (2004)

Synopsis
A man with no memory is unwittingly thrown into danger in this thriller with a comic edge from Australia. As Adrian (Clayton Watson), a young man who suffers from severe amnesia and can't retain a memory for longer than 30 minutes, is being held against his will by gangsters, he struggles to figure out what has happened to him, using his collection of scribbled notes and instant photos to recall recent events. Eventually, Adrian remembers Brandon (Nathan Phillips), who works at a home for the challenged where Adrian spends his days. Brandon is a champion surfer who is sentenced to work at the home as community service after becoming involved in a vicious fight. Brandon has convinced his supervisor Maxine (Marg Downey) to let him take Adrian and palsied Trevor (Steady Eddie) to the beach for a day in the sun; Brandon, however, has an ulterior motive, as a surf competition is being held at the seashore that day. After picking up hitchhiker Jo (Chloe Maxwell), Brandon and his charges arrive at the beach, where a run-in with Gene (Damien Garvey), the leader of a local gang, takes matters in an unfortunate direction. ~ Mark Deming, All Movie Guide