Keep On Trucking: Brettly takes the wheel during the ambitious restoration of a beat-up 1965 Chevrolet truck. Ron and Tyler get a sneak peek at a 1940s peep show machine. (S3, ep 19)

Clueless: A stumped Rick calls Danny Koker for help when a mysterious scooter turns up. A dentist brings in a 1920s X-ray machine. But is it too dangerous to restore? (S4, ep 24)

Milking It: The team struggle to restore two rusty kiddie handcar trains. Plus, Ron and Tyler get to work on a 1950s milk vending machine, but will their efforts churn a profit? (S3, ep 18)

Smoking Hot: The guys put all their skills and expertise to the test, as they are challenged to restore a 1940s children's Irish Mail cart and a potbelly stove from 1881. (S3, ep 17)

Bombshell: The team take on the tough restoration of a unique wheelchair made from bits of a 1940s B-17 bomber. Plus, Kelly creates a risque anniversary surprise for Rick. (S4, ep 23)

Surfing The Strip: Crippled by a tight budget, Rick and his team attempt to overhaul a 1900s chemical cart. Plus, a 1940s motorised surfboard is in drastic need of a revamp. (S3, ep 16)

Dodger Doggin' It: Rick aims for an all-star restoration when Tommy Lasorda, Ron Cey & Paul Lo Duca ask him to turn a 50s Coke cooler into an LA Dodgers-themed hot dog cart. (S5, ep20)

Break In: A huge and heavily-damaged safe that hasn't been opened in years is dropped off at the shop. Can Rick crack the code to reveal its mysterious contents? (S4, ep 22)

Bikes & Barbecues: The guys look to buy and restore a 1940s Japanese Maruishi bicycle and a vintage Chiclet sweet vending machine. (S3, ep15)

Alien Encounters: Ancient Astronaut Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past. (S6, ep 15)