Did you see an unidentified flying object fall from the sky? Area 51's brave operatives will head to the scene by rail with a Recovery Derrick Car capable of hoisting a downed vessel, a lighted damage control car to transport any friends they meet along the way, and a searchlight caboose to search the skies for incoming UFOs - this set has everything you need to handle the job. Additional add-on rolling stock includes a helicopter to assist and a maxi-stack to haul any debris!