Martin washes up on the shores of Gamopelusia, the fabled island of cheese. The natives initially think that he is a spy but soon realize that he is, in fact, the Chosen One, sent by ancient prophecy to save them from doom. Martin, aided by his Gamopelusian friends Nehuen MacTucan and Ursulica Telepata, puts his ingenuity to work while completing his mission, but finds there are those who seek to betray him along the way. "Martin embarranca en las playas de Gamopelusia, la fabulosa isla de queso. Al principio, los nativos piensan que es un espia pero pronto se dan cuenta que es el Elegido, llamado por una vieja profecia para salvarlos del desastre. Martin, con la ayuda de sus amigos gamopelusidas Nehuen MacTucan y Ursulica Telepata, pone a trabajar su ingenio mientras completa su mision, pero descubre que hay aquellos que busquen traicionarlo a lo largo de su aventura.