The one where the Doctor takes Martha to the future, they get stuck in a traffic jam that makes the M25 look like a joyride, and the Face of Boe drops a cryptic spoiler bomb.
Short Synopsis
The Doctor promises Martha the far future of New Earth, only for her to end up kidnapped into a permanent traffic jam beneath the city. He goes on a vertical rescue mission through miles of flying cars, meets some delightfully eccentric commuters, and discovers a secret plague and some very hungry crabs.
Extended Storyline
After Elizabethan flirting and witch-fighting, Martha wants to see the real future. The Doctor obliges, bringing her to New Earth — which, to be fair, looks suspiciously like the same Cardiff quarry as last time. He assures her it’s paradise. Within five minutes, she’s kidnapped at gunpoint by a young couple desperate for an “extra passenger” lane in the endless motorway. Romantic, huh?
Martha finds herself trapped in a perpetual traffic jam, where families have been living in their cars for decades. Imagine being stuck in your 2007 Volvo for 20 years. Kids grow up, cats become nuns, marriages crumble, and you still haven’t moved past Junction 12.
The Doctor, of course, storms off to save her. He travels down through layer after layer of flying cars, meeting quirky commuters along the way. There’s Brannigan, the Irish cat-man in a waistcoat with his human wife and litter of kittens. There’s the sweet old ladies with a pet mood patch habit and a box of hymns. Everyone’s oddly cheerful for people who’ve been living in glorified space-RVs for decades.
As the Doctor descends further, the truth emerges: the upper city was wiped out years ago by a deadly virus (thanks again, drug companies). The traffic jam is essentially humanity’s holding pen while everything above collapsed. And lurking at the bottom? Oh, just the Macra — giant crab monsters last seen in Patrick Troughton’s era, now reduced to feral scavengers snapping at flying cars like popcorn shrimp.
Martha and her kidnappers end up at the bottom of the motorway, inches away from becoming crab chow. The Doctor, with help from the ever-cryptic Face of Boe (still hanging around in a giant jar), reboots the system, opens the motorway, and leads everyone back to the surface. Sunshine pours in, hymns are sung, and traffic finally moves. Miracle of miracles.
But the real kicker comes at the end. The Face of Boe, in his dying breath, delivers one final prophecy to the Doctor:
“You are not alone.”
Cue ominous music, the Doctor’s awkward attempt at pretending he’s fine, and Martha realizing that maybe she signed up for more than just a fun gap year of time travel.