Jemm, Son of Saturn (intro); Luther Mannkin; Lincoln Mannkin; Reginald; Grampa Mannkin; Phil Wheatley (NASA Scientist); Deidre Johnson (NASA Scientist); Charles Brigham Dade (CIA Operative); Willie (Soldier); Sid (Soldier); Vin; Bouncer [Bruno]; Unit RT-36258 (Alien)
Luther Mannkin discovers Jemm in an alley and takes him home. Luther's brother Lincoln must find a way to pay Cladius Tull the money he owes him or his men will hurt Lincoln and the family. In an attempt to stop Tull's hitmen, Lincoln and his friend Vin start a brawl that ends in the death of Grampa Mannkin. Meanwhile, two NASA scientists and a CIA operative investigate Jemm's crashed ship and are attacked by RT-36258 and other aliens.