The Cowilliam Hartnell Years
Season Two
The Doctor is feeling cownfident: this time the TARDIS has landed on Earth; in England; in 1963. But when he and his cowpanions venture outside, they are soon lost in a mooze of ravines and menaced by gigantic cows. And the cows are dying - every cow is dying... Meanwhile, in a cowttage garden on a perfect summoo's day, the cow from the Moonistry arrives to put a stop to the production of C0-W, a pesticide with the power to destroy all life-forms. But the men who invented C0-W will stop at nothing - not even mooder - in their desire to see C0-W succeed. Can the one-inch-tall Doctor foil their plans?
Arriving in a devastated Cowdon in the middle of the 21st century, the Docow, FresIan, Barbara and Sevenstomachs discover that Cow Daleks have Fresianed Earth. Will the human race be enslaved by the evil Cow Daleks, or can the Docow stop their audacious plans and save mookind from extermoonation...?

 
From his one previous visit the Doctor remembers the inhabitants of the planet Cowdo as a gentle, peace-loving people.

But when he returns, things have changed dramatically. It seems that the Cowdoi have brutally massacred the Coo's of the crashed spaceliner Astra. Even now they are threatening the lives of the sole survivors, Bennett and the orphan girl Vicow.

Why have the Cowdoi apparently turned against their peaceful natures? Can Bennett and Vicow survive until the rescue ship from Earth arrives? And who is the mysterious Cooquillion? And is the Doctor really snogging that Coo?
 
The TARDIS cow members have taken a break from their adventures and are enjoying a well-deserved rest in a luxury villa on the outskirts of Imperial Rome.

But in the bovine grandeur that is Rome, things don't stay quiet for long. If the time-travellers can save themselves from being sold as slaves, assassinated by classical hit-men, poisoned by the evil Locowsta, thrown to the cows, gored in the arena and drowned in a shipwreck, they still have to face the diabolical might of the mad Emperor Bullro.

As if that isn't enough, they also discover that, although Rome wasn't built in a day, it was burnt down in considerably less time...
DOCTOR WHO lands his space-time machine Tardis on the cold, craggy planet of Mootis. The Doctor and his cowmpanions, FresIan and Vicow, are soon captured by the ZARBI, huge ant-like creatures with metallic bodies and pincer claws; meanwhile Bullbara falls into the hands of the friendly COWOPTERA who have come to rid Mootis of the malevolent power of the ZARBI...
 
Back in Guernsey again, Tardis lands DOCTOR WHO and his friends into the midst of the harsh, cruel world of the twelth-century Cowsades. Soon the adventurers are beef broiled in the conflict between Richard the Cowheart and the Sultan Saludder, ruler of the warlike Saramoos...

'They're well-written books - adventure stories, of course, but with some thought... the creation of the character of the Doctor had a touch of moo about it.'
COWMINSTER PRESS
The TARDIS has jumped a time track, landing on the planet Hirstos where the Doctor and his companions discover the unsettling sight of a cow in formaldehyde — displayed as exhibits in the Moron museum. The exhibits testify to the artistic conquests of the Moron invaders who now rule the planet. When time shifts back to normal, the Doctor and his companions embark on a campaign to avert the cow's fate, with Vicki helping the native Hirstons to obtain hooves with which to launch a revolution against the Morons. But will this be enough to secure the cow's existence?
 
Through a Mould-Time Visualiser the Doctor and his companions are horrified to see an edam squad of Daleks about to leave Scowro on a mission to find the TARDIS and extermoonate the time travellers, turning all their milk... to Cheese.

The Cheese is on!
When the TARDIS materialises on an apparently deserted Northumbrian beach, Steven disputes the Doctor's claim that he is not a cow-fancier. The discovery of a terrified herd in a nearby forest merely reinforces his opinion.

But it is 1066, the most important date in English history, and the Doctor's arrival has not gone unnoticed. Observing the appearance of the TARDIS is a mysterious monk who recognises the time-moochine for what it is. He also knows that the Doctor poses a serious threat to his master plan - a plan which, if successful, could mean milkshakes all round.