After a group of boy scouts are mysteriously slaughtered by a wolf-like beast on Cadaverous Island, Walter Romero, whose closest friend was among the victims, embarks on a quest to uncover the truth. To reach the island, Walter enlists the help of Johnny Mason, the local stoner, to persuade Ashley Valinski, the neighborhood beauty, to take them there using her father’s boat. However, upon their arrival on Cadaverous Island, a swarm of zombies hijacks their boat, leaving them marooned. The trio must then join forces with two police officers, the mayor, and a team of botanists to either eliminate the creatures or face their own demise… DUN-DUN-DUN!!!