In the near future, a government agency called GAP has been studying an alien symbiote ever since it was found in 1947. Their research culminated in the creation of three other symbiotes, using a mix of human and alien technologies. Their final step was to find children with a specific genetic marker that would allow them to merge with the symbiotes. Little did they know that they would also find a person who would be able to merge with the original alien one.