1/4 The Doctor, Steven and Dodo arrive in Tombstone in America's Wild West.
4/4 Steven and Dodo face nasty schoolboy Cyril as the Doctor realises how to solve the puzzle.
3/4 The Doctor is taunted by the Toymaker, and Steven and Dodo must find the TARDIS key…
2/4 The Doctor must solve the Trilogic puzzle as Dodo and Steven play musical chairs…
1/4 In the strange domain of the Celestial Toymaker, the Doctor must play the games or die.