From the liner notes

Sick and the Dead
Flynn (Leeko Mckinney), Alex (Nathan Boreiko), and Joe (Jordy Dickens) were right in the middle of ordinary lives when a zombie plague led them on a detour through a world of terror. One year later, they're no longer the same people they once were: one—a bloodthirsty psychopath, one—a survivalist and one—an unlikely hero. Surrounded by the flesh–eating undead, the three come together to form an uneasy alliance. But who offers the bloodier fate, the walking dead or the psychotic living?

Raving Maniacs
There's a rave going on. It's gonna be great. Tuesday (Emily Morettini) and her boyfriend J.T. (Andrew Vellenoweth), and their friend Katie (Christine Peltier), and Katie's brother (Ryan Patrick Kenny), are going out partying to the biggest rave in Providence, Rhode Island. Of course, the reckless kids become part of an alien plot to distribute some strange drugs (they're so strange, that they glow in the dark) among the ravers at the party. The socially smart storyline tells a tale of reckless youth with no control over the substances they ingest in heir endless quest for stimulation, feeling, and euphoria. The risks of doing some drugs may never be discovered until it's too late, when the party's over.

Invitation
The members of the old gang have all gone their separate ways. Each receives a mysterious Invitation to reunite at an old lodge up North. Thinking one of the group must have some "big announcement", they all arrive at the lodge, except one. He never makes it. What the group learns about the lodge, it's caretaker, and the real reason why they were "invited" leaves them fighting for their lives.