A space-time summons brings the TARDIS to the strangest place Mags has yet visited. A haven for the freakiest freaks and the weirdest weirdoes: Camden Lock, London, in the early 1990s. But there's a reason why former TARDIS traveller Ace has brought the old gang back together. She’s on a mission to rescue an alien being, held prisoner in a massive mansion… A mission that can’t possibly go wrong. Can it?