Jack is a totally self-centered and immature dude who is abducted and brought to an alien zoo to replace his recently deceased father -- a father he thought had abandoned him as a child. But Jack's selfishness immediately clashes with the tyrannical alien zookeeper, as well as the collection of humans from different time periods who are now his new roommates. Alongside an over-the-hill Roman gladiator, a repressed 50s housewife, a rocker hillbilly from the 80s, and a handful of other misfits, Jack struggles with maturing as a person.