Infinity Train - Book Four: Duet

Book 4 will now follow two old friends with dreams of becoming rock stars who find themselves on the Infinity Train. They must explore the locomotive's inner puzzles — and their own relationship — in order to return home, together.

• S4 E1 - The Twin Tapes

• S4 E2 - The Iceberg Car

• S4 E3 - The Old West Car

• S4 E4 - The Pig Baby Car

• S4 E5 - The Astro Queue Car

• S4 E6 - The Party Car

• S4 E7 - The Art Gallery Car

• S4 E8 - The Mega Maze Car

• S4 E9 - The Castle Car

• S4 E10 - The Train to Nowhere