The bladesmiths are challenged to salvage a cannon to make signature blades, and the finalists recreate the North African Kabyle Flyssa.

Mike and Frank face their fears as they uncover the most hair-raising items of the series.

Jamie helps Colin recover a massive wreck. Meanwhile, Brandon confronts his fears and Al tackles an overturned truck.

Two-part programme chronicling the World War II experiences of eight American Presidents: Kennedy, Johnson, Nixon, Carter, Bush, Ford, Reagan and Eisenhower.

Tom takes the fight to the wolves, a lion chase claims a casualty, Morgan builds bigger, and Eustace goes to battle to defend his land.

How did the ancients get oil from the ground without modern drills? And build a bridge across the Rhine in just 10 days? Experts investigate.

Evidence continues to mount and patterns emerge, as a group of former US government insiders seek the truth behind UFOs.

This first episode provides context for when, how and why the mobile death squads, or EZG, were established.

Danny has big plans for a street rocket known as a Manta, and the crew commissions an '80s-era Corvette that the owner wants to bring into the new millennium.

Hours before the D-Day landings, a small group of American paratroopers were dropped behind enemy lines with a vital mission.

Follow the Bisso family, experts in the technical task of sea salvage and excavation, as they put their lives on the line to perform one of the most dangerous jobs on Earth.

Exploring the rise of this secretive state into a force on the global stage.

Four bladesmiths must forge J Nielson's favourite blade, a Damascus European dagger, before moving on to the Zande spear.

Some collectors' trash is Mike and Frank's treasure as they go digging for rusty gold on some of their dirtiest and overstuffed picks ever.

A troublesome winch line forces Jamie and cousin Paris to find a quick fix. Jordie faces a twisted wreck that crashed through an airport fence.

An encounter in the American heartland indicates a disturbing twist to the UFO phenomenon. The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history.

After layering a complex Damascus pattern in their signature blades, the remaining competitors recreate a three-bladed African throwing knife called the Kpinga.

The guys meet the most unique collectors they've ever encountered, and learn that the most interesting people have the coolest stuff.

A crash in the Fraser Canyon has Colin and crew working below an unstable rock slope. Jamie charts a new course for his business.

Alfred stuns the team when he risks his life to help British POWs escape so they can help train the resistance leading up to the secret Allied operation that is just weeks away.

Four bladesmiths must craft a hatchet from pieces of odd-shaped steel before two are chosen to make the deadly Masaai lion spear.

Mike and Frank learn it's not always easy getting what they want when they face down some of the toughest negotiators on the road.

Jamie's team face an all-night battle as a storm unleashes chaos on the highways around Hope. Meanwhile, Jason and Merv tangle with a loaded semi in the Valley.

Every move made by Vladimir Putin is part of a master plan to rebuild a Russian empire. In this two-hour special, we will take viewers on a journey to understand how this cunning spymaster and dictator plans to overthrow the existing order.

The bladesmiths are forced to make canister damascus using nuts and bolts before two must recreate a pair of deadly Indian Bagh Nakh weapons.

Mike and Frank have the most fun possible on two wheels in this collection of the rarest bikes and motorcycles they ever picked.

Jamie's puts his latest wrecker, 'The Python', to the test on a trapped semi, while Ken and Dylan struggle with a logging truck on an icy mountain road.

Four airmen from the US Air Force must forge a Bolo knife using the San Mai technique to combine high carbon steel with helicopter parts. Which airman's blade will land him a spot at the Air Force Anvil, and a chance at the $50,000 grand prize?