HEAD TRIP, Part 5 of 6 After Dodging Dinos, cavemen, and a particularly nasty Zombie T-Rex, our intrepid trio—Deadpool, Dr. Betty and "Headpool" a.k.a. the severed head of Zombie Deadpool—escape in an >ahem< borrowed Hydra shuttle and head for the A.I.M. space station to deliver their hot bio-cargo.