A mysterious parasitic disease rapidly spreads across a tropical island, turning the infected violent and contagious.
In the midst of the chaos, Dan, the anxious over-thinker, struggles to balance the survival of a woefully inept group of students and the wooing of his class crush. Luckily, Augie the self-proclaimed Nerd King has a plan for surviving the apparent apocalypse.
Meanwhile, Zack, the depressed white-collar worker, embarks on a quest for magical ice cream, which can stave off his suicidal tendencies. When his journey is interrupted by the walking dead, his fear of eternal undeath and a friendship with the clever canine, Bingo, prove to be the most unlikely antidepressants.
Fates intertwine as the survivors struggle to find a safe haven, knowing that any mistake could result in irreversible infection with Zombosis.