A group of coworkers from a label design company are sent to a secluded tropical island for a team-building exercise. After their former military guide (Jean-Claude Van Damme) disappears, these city dwellers descend into something resembling the scenario in “Lord of the Flies.” Adam Brody, Eric Edelstein, Megan Boone and Kristen Schaal portray the main characters, with Rob Huebel taking on the role of the antagonist.…