Thirteen-year-old Colton and his best friend Jade spend their free time investigating a local urban legend concerning an old abandoned house in their hometown in Ireland. The run-down building is said to be haunted and some of the things they’ve seen seem to confirm it.

Colton has a crush on foreign exchange student, Dylan, who is visiting his aunt from America. But Colton learns that Dylan isn’t your average American kid—he’s a werewolf. When Dylan’s aunt disappears through a portal inside the house Colton and Jade have been investigating, the three of them set out to save her from the magical realm on the other side of the doorway.

Sam and his friends laugh when the storeowner calls them a Zombie Squad. But they have no idea what’s coming their way. A mysterious relic they come across turns out to be a catalyst for unspeakable events. And the dead don’t just start to walk—they awkwardly sprint from victim to victim, building an army of undead. To make matters worse, a group of mobsters pursue The Zombie Squad through the city of New Orleans, wanting to obtain the relic for their own malicious reasons. Sam and company are suddenly tasked with undergoing a hellish chase, to not just stop a zombocalypse, but thwart malign mobsters from unleashing even more evil.