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Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past.

Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.

Dig into how a lobster helped archaeologists discover an000-year-old underwater settlement. (3 of.

The team hunt for artefacts from World War II. (4 of.

Alice Roberts tours the East of England, seeking out the biggest archaeological digs of the year and witnessing the uncovering of a hugely significant Roman mosaic.

The abduction of nine-year-old Cynthia kicks off a series of increasingly deadly confrontations between her Comanche captors and the newly independent Texas.

Missionaries Marcus and Narcissa settle by the Columbia River to convert the Cayuse. Cultural clashes and a measles outbreak spark a confrontation.

King Harold is shown dying with an arrow through his eye. Rob learns that the story may not be as simple as that.

Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past.

Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.

Dr Alice Roberts explores a secret location in the Cotswolds, which gives up a very precious and fragile artefact. (1 of.

The archaeologists get more than they bargained for while exploring the childhood home of Lady Jane Grey. (2 of.

Follow the events of 1944, as the USS Enterprise and the Carrier Task Force push through the Pacific, hammering the enemy bases at Kwajalein and Truk Lagoon.

Roadworks on the A9 road uncover the remains of a young woman who lived and died in the early Bronze Age. Was she one of the so-called Beaker People.

On 19 August 1987, Michael Ryan went on a bloody rampage in the village of Hungerford. Ryan shot and killed 16 people, and his crime would change the face of Britain.

Doctor Harold Shipman was convicted of killing 15 patients in 2000, but he is thought to have killed up to 215. Discover how he was eventually caught by detectives.

The estate agent reveals the story of her abduction, rape and incarceration, which occurred in 1992 whilst showing a man around a house.

Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past.