TV Guide Discovery Channel Friday

Mike braves cramped spaces in a hockey arena's escalator to scrape and remove stubborn spots from the bottom of the dangerous contraption.

Mike trains as a combat surgeon under hyper-realistic battlefield scenarios; Mike helps control an unhealthy invasion of iguanas on the Florida coast.

Mike heads to the mountains of Utah to help relocate beavers causing mischief for nearby municipalities; Mike gets sticky to fulfill a lifelong dream.

Mike assists north Texas cat ladies fix a clowder of feral cats at a facility; Mike and crew process peppers alongside the inventor of the California Reaper.

A look at how Atari became a pioneer in home video game consoles and arcades due to its success of 1972's Pong and 1980's Pac-Man, and its unfortunate demise.

Mark and Digger discover a tracker on their truck after a big sugar sale; Richard and Daniel scheme to dominate the outlaw market with rum.

Keith and Jake defend their grounds from encroaching trawlers; Sig struggles to keep his vessel operational under the pressure of a looming offload.

After 6 weeks at sea, man and machine push past the breaking point; while Keith seeks medical care in Anchorage, the Wizard loses steering in 20-foot seas.

As buyers close their doors, the fleet scrambles to collect its first opilio windfall in 3 years; after Sig's collapse, Clark assumes the full skipper role.

In Idaho, a family has a cabin on the verge of collapse and chickens that are threatened by predators, so they enlist the Raneys to help.

The Raneys respond to an emergency call from central Arkansas, where an infrastructure-rich family lacks the skill to make their dream a reality.

A Colorado family's dream of self-sufficiency is crumbling under the destructiveness of their bison herd; the Raneys must first tame the chaos.

A special sneak peek at the new season of "Homestead Rescue."

Rick baulks at the terms for his new claim and makes a bold move. Parker's foreman, Tyson, battles a flooded cut and a batch of new recruits.

Parker pushes Mitch to deliver Sulphur Creek gold and records a big score; Buzz lands on an unlikely claim; Tony's pressure tests a new foreman.

Parker tasks Tyson with finding the weakest link in the crew; Tony approaches Parker to make a deal and raids his son Mike's operation.

Tony hunts down an insubordinate crew member; Rick gets his first gold from Lightning Creek; Kevin's parents pressure him to get his new Pyramid Cut running.

While searching for better ground on Lightning Creek, Rick is rocked by surprising news; Parker gets greedy and expands his Sulphur claim.

After a disastrous first Forever Claim barge and the prospect of losing Float Camp, Jared brings in more crew; Float Camp Claim races to end strong.

A 17-year-old mining prodigy, his father and grandfather wrestle with wintry weather to get their season underway in central Alaska.

Freddy and Juan return to the wild Klondike to assist a female mine boss and her husband bring their operation back from the edge of bankruptcy.

While searching for better ground on Lightning Creek, Rick is rocked by surprising news; Parker gets greedy and expands his Sulphur claim.

After a disastrous first Forever Claim barge and the prospect of losing Float Camp, Jared brings in more crew; Float Camp Claim races to end strong.

A 17-year-old mining prodigy, his father and grandfather wrestle with wintry weather to get their season underway in central Alaska.

Freddy and Juan return to the wild Klondike to assist a female mine boss and her husband bring their operation back from the edge of bankruptcy.

Dave Turin demonstrates how to search for Mojave gold using the dry washing technique, the blanket method, and the modernized way of using a vacuum.

The crew auctions off Elvis's bracelet and silver replicas of Columbus's three ships. They also have a tour of a wildlife preserve.

Host Scott Martin enjoys a day of fishing for giant bass with his father, Roland Martin, and teaches him new fishing tricks on a Midwestern lake.