UFO Metal: Nations all over the world are rumoured to have found metal debris from UFO crashes. Join the investigation into the alleged wreckages of otherworldly crafts. (S2, ep 11)
Finding Aliens: Advances in technology have given us unprecedented access to distant galaxies that may harbour life. However, alien life may be found closer to home. (S4, ep 10)
Antigravity: Experts discuss the possibility of advanced alien technology that could allow UFOs to fly at blinding speed or hover effortlessly a few feet above the ground. (S2, ep 10)
Alien Journeys: Alien encounters have offered a possible glimpse into the secrets of interstellar navigation. Could this one day ensure mankind's survival? (S4, ep 9)
Signs of Abduction: From loss of time and bizarre hazy memories, to terrifying accounts of alien surgery, these are the hidden signs of alien abduction. (S2, ep 9)
Fast Eddie: While the guys pick the back roads of Minnesota, they challenge Danielle to sell a 10-foot fiberglass cowboy boot that's been gathering dust for more than a year. (S4, ep 11)
Trading Up: On the scavenge in Ohio, Illinois and Indiana, Frank strikes gold when he buys a rare BSA motorcycle and falls in love with a pinball machine featuring Happy Days' the Fonz.
The team meet an intriguing man who claims he is a 'psychic picker', as well as search a steelyard full of rusty junk and an old farm where treasures are plentiful. (S2, ep 7)
Frank's Gamble: The guys find a vast junkyard in Maryland and, after Frank offers big money for a 1939 Plymouth coupe, a stash of rare motorbikes sets the pickers' hearts racing. (S1, ep 7)
8th Grade Humor: On home turf in Iowa, Mike and Frank hit a honey hole of vintage toys. Plus, Mike spots an item so unusual he's willing to take a huge gamble. (S4, ep 10)