Waveriders

One day, Jason finds an unusual board game called Mamba. When his surfer friends start to play, the games unleashes its deadly curse, killing the losers in a gruesome fashion. Supposedly it will grant the winner a wish. As his companions die off, Jason decides that the only way he can reverse the tragedy is by continuing to play. With his girlfriend, Erica, Jason rolls the dice and hopes to make his wish before one of them suffers a horrible fate.

A sleazy producer develops a concept he dubs "blood surfing" -- tossing bloody fish remains into the water to lure sharks and then surfing through the animals as they chomp about. Along with his camerawoman, the producer brings two thrill-seeking surfers to the coast of Florida to capture some gnarly footage. But, as they blood surf, they encounter something even more deadly: a colossal prehistoric crocodile intent on devouring them.