Monster Moves - Season 4

The Royal Naval docks of Halifax, Nova Scotia, Canada are cluttered with decommissioned Oberon-class submarines. Once a vital weapon of the Cold War, these O-boats are heading for the scrapyard, all except the HMCS Onondaga, which is destined for a maritime museum 620 miles away, if it can ever get there. The Site historique maritime de la Pointe-au-Père is located in Rimouski, Quebec. Follow a daring team of marine engineers as they attempt to tow this 1,400-ton submarine up Canada's coast in the face of a hurricane, and then haul it over rocky shores and onto a perilously steep railway in 2008. It's a massive move, and the stress factor is just as large.

In Quebec, Canada, a crew attempt to relocate over 170 homes that are sitting on top of 8 billion dollars worth of gold. They must work fast to relocate the town of Malartic so that miners can reach the precious reserves while the price of gold remains high.

In Raleigh North Carolina, a second team attempt to move a suburb of colossal historic mansions across the bustling city to rescue them from demolition. The century old mansions each weigh over 200 tons and are extremely fragile. Can they be moved intact?

A team race against time and tide to transport a fleet of mega-yachts worth over $160million from Genoa, Italy to Fort Lauderdale in Florida. The 20 bespoke yachts are too precious to sail across the Atlantic. So a Dutch team create a customized 'submersible' yacht transporter-ship to ferry the luxurious pleasure boats around the world.

The mission's success lies in the hands of loading master Tieke Springer. She must load, balance and secure the yachts on the transporter ships flat deck precisely so they can survive the rough sea crossing. Half way through the 8,000km voyage, the ship runs into a hurricane. Will the precious cargo survive this deadly encounter?

In Sioux Falls, South Dakota heavy hauler Craig Coxe attempts to dismantle the historic 'Big Blue' Mansion to move panel by panel and brick by brick over 500 miles through Tornado Alley to reach Missouri. Can the giant jigsaw be re-assembled when it arrives?

While on Bainbridge Island, Washington, house trucker Jeremy Nickels attempts to float a colossal two-storey mansion through the middle of a busy shipping lane to reach a more picturesque waterside setting. Will the mansion reach its destination undamaged by waves?

In Salem, Massachusetts, America's leading mansion mover, Jerry Matyiko, attempts to shatter records with the biggest building move of the year. He faces the task of lifting and moving a 1,000-ton church to a new site where it will be redeveloped into a Courthouse Law Library.

The structure is weak and contains a vast auditorium that could cave in during the move if unsupported. Jerry's team must build a grid of steel inside and outside the structure to hold it together during the downhill move. Can the team complete the move before winter storms strike?

Heavy Hauler Jeremy Patterson faces the titanic task of hauling one of America's largest and most famous steamships, the SS President, almost 100 miles across sea and land in St Louis. His original plan - to haul the 100metre long ship on a bed of over 80 wheels by road - is thwarted when it proves impossible to pull the ship out of the Mississippi.

This leaves him with the enormous challenge of slicing and dicing the ship into pieces using blow-torches and cranes. Strong gusts and winter blizzards make the task increasingly hazardous. Once all the pieces make it to the town of St Elmo, Jeremy must re-assemble the giant jigsaw puzzle in the middle of the town and transform it into a hotel. Will all the pieces fit back together?