The Doctor takes Clara and some children to a derelict theme park in space. Cybermen show up, upgrade themselves into unstoppable techno-nightmares, and the Doctor winds up playing a deadly chess match against his own brain.
Short Synopsis
In an abandoned intergalactic funfair, Cybermites revive the Cybermen, infect the Doctor, and force him into a mental duel with “Mr. Clever” — his sinister cyber-alter ego. Meanwhile, Clara takes charge of a ragtag squad of soldiers and proves she’s better at command than most actual commanders.
Extended Storyline
We start off innocently enough: the Doctor has promised Clara a nice day trip. Naturally, this involves dragging along Angie and Artie, the two kids she’s been nannying. Because nothing says “day out” like a dilapidated alien theme park on a remote space station. The kids’ reaction? Maximum sulk. (Honestly, they’d probably complain if he took them to Disneyland.)
The funfair isn’t quite as abandoned as it looks. Its caretaker, Webley (a delightful Warwick Davis), shows off curiosities from a bygone age, including a “Cyberman chess player” — basically Deep Blue, but with more exoskeleton. Surprise! The “chess player” isn’t quite as deactivated as advertised. Enter the Cybermites, creepy little metal bugs that scuttle about like the world’s least cuddly silverfish.
One bite later, and the Cybermen are back, shinier, faster, and suddenly rocking new abilities like detachable heads, superspeed, and the ominous power to say “UPGRADE” like it’s a sales pitch. They promptly infect the Doctor himself, spawning his new alter ego: Mr. Clever. Cue Matt Smith acting opposite himself, switching from manic Time Lord to icy Cyber-possessed villain with nothing more than a twitch of the mouth and a dead-eyed stare. It’s both brilliant and unsettling — the man basically plays chess against his own face.
Meanwhile, Clara gets saddled with a platoon of punishment soldiers who were banished to guard duty because they were basically rubbish. In true Clara fashion, she takes command without hesitation, barking orders, devising defenses, and managing to look more authoritative than the lot of them combined. (Honestly, she should’ve put “temporary general” on her CV.)
Back in the Doctor’s brain, the duel is literal: a chess match where the stakes are his mind, the TARDIS, and the universe. Mr. Clever taunts him, offering bargains and occasionally leering creepily at Clara through the Doctor’s mouth — a detail as unsettling as it sounds. The Doctor, of course, outsmarts him in the end with a classic paradox: forcing a situation where every possible move leads to checkmate. It’s Time Lord Brain 1, Cyber Upgrade 0.
The climax sees Porridge — the quiet little man tagging along — revealed as none other than the Emperor of the Known Universe, hiding from his responsibilities by working as a fairground custodian. (You know, as you do.) He reluctantly orders the destruction of the entire planet to stop the Cybermen, a move both tragic and very “big red button.” Luckily, he offers Clara a chance to be Empress afterward. She declines, which is frankly rude because “Empress Oswald” has a nice ring to it.
The Doctor, Clara, and the kids hop back to Earth, everyone safe — though Angie and Artie are still unimpressed. Honestly, if saving them from Cybermen doesn’t win them over, nothing will.