Paul McGann (The Doctor); Sheridan Smith (Lucie Miller); Katarina Olsson (Headhunter); Nigel Havers (Nick); Julia McKenzie (Rachel); Tom Chadbon (Gordon); Tim Hudson (Tar-Modowk Leader)

What links a disintegrating spaceship to a posh garden party, where a wealthy couple are celebrating their love for each other in style? Gatecrashers the Doctor and Lucie think they know the answer. But they're not the only uninvited guests - ferocious alien warriors riding pterodactyl-like Vortisaurs are about to make their entrance!

Featuring the song Bucimeana sung by Julia McKenzie with music by Tim Sutton and lyrics by Paul Sutton from a traditional Hungarian poem.