Some of the strangest and deadliest weapons ever built were the prototypes of the modern gun. Was a simple bamboo tube the world's first hand gun? Plus, hidden in an ancient manuscript lies a secret recipe for ancient tracer fire – but does it work?

Warriors

In 1565, the Knights of Saint John defended Malta from the attacking Ottomans. Terry Schappert reveals what it was like to be a warrior in one history's greatest sieges.

The Best of MonsterQuest

Large and dangerous cats are stalking suburban neighbourhoods throughout the United States. The MonsterQuest investigation team goes undercover to examine evidence and eyewitness accounts to reveal the identity of this beast before it kills again.

Across the world, engineers are going to extreme lengths to keep the lights on: harnessing the power of the longest river on Earth, tapping into the raging heat of a live volcano, and building one of the largest offshore wind facilities in the world.

UFO Files

Reveals for the first time the cockpit and control tower audio recordings of pilot and astronaut confrontations and sightings of unidentified flying objects high in our skies.

The river hunters' final hunt takes the team back into Yorkshire to uncover relics at Knaresborough Castle from the brutal 14th Century clashes between the English and the Scottish

The epic tragedy of Medusa, the most infamous female fiend in Greek mythology whose look turned every living thing to stone. But what is the true story behind the myth? Are there clues in the night sky to the origins of the tale?

Lenny and Gerrard make a startling discovery in a sabotaged aircraft hangar in northern Germany. Mike and James scan an Austrian lake in search for a large cache of secret Nazi documents.

Some of the strangest and deadliest weapons ever built were the prototypes of the modern gun. Was a simple bamboo tube the world's first hand gun? Plus, hidden in an ancient manuscript lies a secret recipe for ancient tracer fire – but does it work?

Warriors

In 1565, the Knights of Saint John defended Malta from the attacking Ottomans. Terry Schappert reveals what it was like to be a warrior in one history's greatest sieges.

The Best of MonsterQuest

Large and dangerous cats are stalking suburban neighbourhoods throughout the United States. The MonsterQuest investigation team goes undercover to examine evidence and eyewitness accounts to reveal the identity of this beast before it kills again.

Across the world, engineers are going to extreme lengths to keep the lights on: harnessing the power of the longest river on Earth, tapping into the raging heat of a live volcano, and building one of the largest offshore wind facilities in the world.

UFO Files

Reveals for the first time the cockpit and control tower audio recordings of pilot and astronaut confrontations and sightings of unidentified flying objects high in our skies.

The river hunters' final hunt takes the team back into Yorkshire to uncover relics at Knaresborough Castle from the brutal 14th Century clashes between the English and the Scottish

The epic tragedy of Medusa, the most infamous female fiend in Greek mythology whose look turned every living thing to stone. But what is the true story behind the myth? Are there clues in the night sky to the origins of the tale?

Some of the strangest and deadliest weapons ever built were the prototypes of the modern gun. Was a simple bamboo tube the world's first hand gun? Plus, hidden in an ancient manuscript lies a secret recipe for ancient tracer fire – but does it work?

Warriors

In 1565, the Knights of Saint John defended Malta from the attacking Ottomans. Terry Schappert reveals what it was like to be a warrior in one history's greatest sieges.

The Best of MonsterQuest

Large and dangerous cats are stalking suburban neighbourhoods throughout the United States. The MonsterQuest investigation team goes undercover to examine evidence and eyewitness accounts to reveal the identity of this beast before it kills again.

Across the world, engineers are going to extreme lengths to keep the lights on: harnessing the power of the longest river on Earth, tapping into the raging heat of a live volcano, and building one of the largest offshore wind facilities in the world.

UFO Files

Reveals for the first time the cockpit and control tower audio recordings of pilot and astronaut confrontations and sightings of unidentified flying objects high in our skies.

The Hunt For Baltic Gold

Tomek uses UV light to scour the beach at night. Krzysztof and his team start digging in the field. Benedykt sails out into the sea in the hopes of catching not only fish, but also finding amber. Dorota has to deal with an unexpected crisis.

Lost Worlds explores the tunnels beneath some of London's greatest buildings. The underground command centre from where the Battle of Britain was won is just one of the secret bunkers toured in this episode.

Budapest sits on top of an ancient secret. Follow Eric Geller as he uncovers a top secret WWII hospital and finds the source of the boiling healing water used by the Romans and the Turks in the caves beneath Budapest.

Evolve

Engineering an Empire

For more than 500 years, Rome was the most powerful and advanced civilisation the world had ever known, built by an unprecedented mastery of engineering and labour.

In Southern California, raging wildfires set the stage for a massive mudslide killing 14 people at a campsite. A tornado targets an Oklahoma truck driver. Plus, an Indonesian volcano errupts, smothering nearby citizens with a blanket of ash.

With only one shot left to convince Marty to join their search, the team heads west where new clues are revealed.

The Hunt For Baltic Gold

Tomek uses UV light to scour the beach at night. Krzysztof and his team start digging in the field. Benedykt sails out into the sea in the hopes of catching not only fish, but also finding amber. Dorota has to deal with an unexpected crisis.

Lost Worlds explores the tunnels beneath some of London's greatest buildings. The underground command centre from where the Battle of Britain was won is just one of the secret bunkers toured in this episode.

Budapest sits on top of an ancient secret. Follow Eric Geller as he uncovers a top secret WWII hospital and finds the source of the boiling healing water used by the Romans and the Turks in the caves beneath Budapest.