10th Doctor (David Tennant) Best to Worst Episodes

The Doctor and Donna visit a planet-sized library but soon realise that the planet is devoid of life, that is until River Song and her team of archaeologists arrive. As they unravel the library's mystery, something lurks in the shadows.

Sally Sparrow receives a cryptic message from the Doctor about a mysterious new enemy species that is after the TARDIS.

The Doctor, Mickey and Rose land on a spaceship in the 51st century only to find 18th century Versailles on board, the time of Madame De Pompadour! To find out what's going on the Doctor must enter Versailles and save Madame De Popmpadour but it turns into an emotional roller coaster for the Doctor.

When the Doctor and Rose become stranded on a planet orbiting a black hole, they find a human expedition crew and their servants, the Ood, being terrorised by the Devil.

In 1913, Martha watches in jealousy from afar as The Doctor learns what it is to be human and to fall in love with the local school nurse, Joan Redfern.

In a Mars base the inhabitants are being infected by a mysterious water creature which takes over its victims. The Doctor is thrust into the middle of this catastrophe knowing a larger one is waiting around the corner.

As part of a well-deserved holiday, the Doctor takes a tour on a planet called Midnight. Little does he know that something is knocking on the walls, although the planet shouldn't be inhabited. Soon the passengers begin to panic when one of them is possessed.

The Ood have given a warning to The Doctor. The Master is returning yet that is not the biggest threat. A darkness is coming which brings with it The End of Time.

When ghosts of loved ones appear all over the world the Doctor traces the phenomena to the Torchwood Tower, where some old friends and enemies are waiting.

The return of an old enemy leaves Earth along with 26 other planets stolen from their places. As the Doctor and Donna look for the whereabouts of Earth, former companions of the Doctor assemble a resistance against the new Dalek Empire.

What would happen if Donna never met the Doctor? How would Earth handle the Racnoss, the falling Titanic or the Sontarans? Aided by a familiar blonde time traveler, Donna corrects the alternate time line from happening.

Soon after bumping into old friend Jack Harkness, Martha and The Doctor head off to Malcassairo, a distant planet where an old professor will do anything he can to keep his people alive...

The TARDIS crash lands in London on a parallel world, where Rose's dad is still alive, people are disappearing off the streets and one of the Doctor's deadliest enemies is about to be reborn.

Finding themselves on the Ood-Sphere planet in the 42nd century, The Doctor and Donna discover the truth over the Ood's willingness to serve humankind.

Instead of Rome, The Doctor and Donna Noble end up visiting Pompeii in AD 79, on the eve of the catastrophic eruption of Mount Vesuvius. Before anyone even knew it was actually a volcano, the entire city is doomed for destruction.

When medical student Martha Jones meets a mysterious stranger called The Doctor, and finds herself transported to the moon, her life will never be the same again.

The Krillitanes - aliens with a mix-and-match physiology - are trying to crack the 'God-Maker', a paradigm to give them ultimate power. They are using children as a computer, and only the Doctor and Rose, re-united with Sarah Jane Smith and K9 can prevent them from becoming masters of time and space.

It's Christmas Eve, but this is to be a far from silent night - the cruel Sycorax have come to Earth to enslave mankind and, as ever, only The Doctor can stop them. Unfortunately, he's lying in a coma in Jackie's home...

On a spaceship headed straight for the centre of the sun, the Doctor only has 42 minutes to save Martha and the ship's crew from an inevitable doom.

With a 1926 dinner party turning into a murder mystery, The Doctor and Donna Noble get the chance to meet Agatha Christie on the eve of her well-known 9-days disappearance.

The Doctor takes Martha to London in 1599, where William Shakespeare's new play is being used by three witches in an evil plan.

The Doctor and Rose are transported to 19th Century Scotland, where they meet Queen Victoria, and try to protect her from a ravenous werewolf and a band of assassinating warrior-monks

The Doctor takes Martha to New Earth, where she is kidnapped by two carjackers and taken to an underground Motorway, where the remainder of humanity on the planet live in perpetual gridlock.

Caught in the middle of a war between the Humans and the Hath in the planet Messaline, the Doctor finds himself once again a father.

The Doctor arrives in London on Christmas Eve in 1851 where he encounters the Cybermen and a man who claims he's a Time Lord called the Doctor.