Alan joins his brother Dan’s personal investigation agency in the hopes of reconnecting with his older sibling. Although he doesn’t know the first thing about private analysis and he’s hopeless with a weapon, Dan convinces him to greatly help him from a covert mission for Dan’s previous commanding officer. But the objective is a lot more dangerous than either sibling realizes. The officer and his troops are seeking to recover an insidious gadget used to manipulate Earth’s history. Mankind is under strike…and doesn’t even realize it. Alan and Dan are ill-equipped to handle this undetectable invasion…but they’re the only opportunity Earth has to survive.