Right then, Whovians — this is the one I’d been waiting for. Not the regeneration, not the pyjama-clad swordfight over London in The Christmas Invasion, but the first proper trip. Doors open, new Doctor, old companion, somewhere impossibly far away, just the two of them and that grin. “New Earth” is where David Tennant and Billie Piper finally get to show us what this partnership is actually going to feel like, and the answer is: sunlit, giddy, and just a little bit dark around the edges. It’s a flawed episode — I’ll get to that — but as a mission statement for the Ten-and-Rose era, it’s an absolute delight.
Sunshine, Apple Grass, and a Familiar Face
The TARDIS lands billions of years in the future on New Earth, humanity’s adopted home after the old one burned — and if that sounds familiar, it should. We watched the original Earth go up in flames back in The End of the World, so there’s a real thrill in seeing where the human race washed up afterwards. The Doctor and Rose lie back in the “apple grass” under a warm sun, staring across the bay at the towers of New New York, and Tennant sells the sheer joy of the thing. “I love it. I love this. I love New New York!” He’s not brooding, he’s not haunted — he’s a big kid showing his best friend the universe, and it’s infectious. Cast your mind back to the guarded, war-scarred man who first grabbed Rose’s hand and told her to run in Rose; this is the same soul with the weather turned to summer. Rose feels it too. She’s looser here than we’ve ever seen her, teasing him, needling him, the pair of them bickering like they’ve got all of time to waste — which, of course, they do.
But they haven’t landed here by accident. The Doctor’s had a message on the psychic paper summoning him to a hospital run by the Sisters of Plenitude — an order of cat-faced nuns whose miracle cures are the talk of the galaxy. And waiting in the wards is another face from that far-future day we’ve seen before: the Face of Boe, the ancient, enormous head-in-a-tank who’s apparently dying of old age. Legend says he’ll speak a great secret with his final breath, to a lonely wanderer, at the end of his life. When the Doctor comes to see him, though, Boe changes his mind — the secret can wait for another day, another meeting. Cheeky. Davies dangles the hook and then pulls it away, and I am completely on the line.
The Sisters of Plenitude and Their Terrible Secret
The Sisters can cure anything — Petrifold Regression, the lot — and that’s exactly the problem. Nobody’s medicine is that good. Rose, doing a bit of investigating, goes down into the basement and finds the ugly truth behind all those miracles: an “intensive care” unit that’s really a farm. The Sisters have grown thousands of humans in isolation pods, deliberately infected with every disease in existence, and they harvest the cures from these living, suffering test subjects. A whole species bred to be sick so the paying customers upstairs can walk out healthy. What makes it land is the Sisters themselves — soft-spoken, purring, endlessly gentle, utterly convinced they’re doing good work. There’s no cackling villainy here, just the serene bureaucracy of people who’ve decided some lives are raw material. That’s a far more unsettling kind of monster than anything with a blaster.
It’s a genuinely nasty bit of sci-fi ethics, and the show doesn’t flinch from it. The Doctor’s fury when he understands what he’s looking at is the first real flash of the Tenth Doctor’s righteous anger since he stared down the Sycorax — this is a man who cannot abide cruelty dressed up as care. The Sisters justify it the way people always justify these things: the ends, the greater good, all those lives saved. The Doctor isn’t having a word of it. “These people are alive.”
Cassandra, Body-Swaps, and a Rain of Cures
And then the episode’s other returning guest crawls out of the woodwork — literally, from a hidden chamber in the basement. Cassandra, the “last human,” the bitchy trampoline of stretched skin who we watched apparently die back on Platform One. Turns out her brain survived, and she’s been lurking down here with Chip, a devoted little force-grown clone who worships her. Furious at being called ugly, she uses a “psychograft” to leap out of her own frame and into Rose’s body — and here’s where “New Earth” pivots hard into farce.
I’ll be honest, this is the part fans argue about, and I get why. Billie Piper spends a big chunk of the episode playing Cassandra playing Rose — all pursed lips, va-va-voom strut, and a scandalous snog she plants on the Doctor before he’s worked out what’s going on. Then Cassandra hops into the Doctor, so Tennant gets a turn being camp and vain too. It’s broad, it’s silly, and it sits at a very strange angle to the horror farm humming away in the next room. When it works, it’s a hoot and a showcase for both leads; when it doesn’t, it feels like two different episodes wrestling for the wheel.
What pulls it all back together is the ending, and it’s a beauty. The infected Flesh humans break out of their pods, and one touch from them spreads every plague at once — so the Doctor does the most Doctor thing imaginable. He empties every cure the Sisters ever brewed into the disinfectant drip, rides a lift down into the quarantine ward, and showers the poor diseased masses in a rain of medicine. He doesn’t fight them; he heals them, all at once, and turns a farm of manufactured suffering into a brand-new people — humans with no parents, no past, born fully grown into a cured world. It’s exactly the kind of solution this show does better than anyone: mercy as the answer, life as the win.
Cassandra’s send-off lands the emotional gut-punch, too. Body-hopped one final time into the dying Chip, she finally runs out of road, and instead of clinging on she asks the Doctor for one last kindness. He takes her back to the last night anyone ever told her she was beautiful, and she dies in her own younger arms, whispering the compliment she never got to hear. For a character introduced as a snob and a punchline, it’s a startlingly tender exit.
What New Earth Leaves Us With
A messy, bright, big-hearted season opener that’s more interested in vibes than tidiness — and honestly, that’s fine by me. Here’s what it plants:
- Ten and Rose are going to be joy. After a debut where the Doctor was unconscious for most of it, this is the first real taste of the partnership, and the chemistry is off the charts. This is a Doctor who travels for the sheer love of it.
- The Tenth Doctor’s line on cruelty. Same anger we saw with the Sycorax, aimed at a quieter evil: he will not accept suffering justified by results, no matter how many lives it “saves.”
- RTD’s signature cure. The rain-of-medicine finale is a thesis statement — this Doctor solves problems by healing, not smiting.
- A secret held back. The Face of Boe has something enormous to tell the Doctor and won’t say it yet. Whatever it is, it’s now hanging over everything, and I want to know.
- Cassandra gets a soul. Killing off the show’s shallowest villain with genuine pathos is a neat trick, and a sign of how confident this era already is.
Rating: 3.5/5 — Overstuffed and tonally all over the map, but so warm and so watchable that I can’t hold the mess against it. The apple grass alone nearly gets it another half-point.
New New York, cat-nuns, a body-swapping trampoline, and a Doctor who cures a plague with kindness — if this is what an ordinary trip looks like now, sign me up for the whole season. Pass the psychic paper; I’m ready for wherever we land next.