O'Hare Towing's Bill Gratzianna and his team of drivers use their expertise and elbow grease to keep Chicago highways clear. In the series premiere, a 25-ton garbage truck is taken out by a pothole, an SUV crashes into a tractor trailer, a massive excavator gets dumped into the street, and a drunk driver hurtles into a ditch.

A tandem trailer bottoms out trying to avoid a crash, a tractor trailer wedges itself into a tunnel, a semi carrying 42 tons of cargo teeters on a mound of ice, and O'Hare's owners butt heads about the cost of new construction.

A driver wraps a car around a pole, a semi full of paper gets stuck in the mud on some railroad tracks, an overloaded dump truck takes a spill, and Bill's daughters show him who's boss.

Joey and Tony must rescue a massive crane from a ravine, a three-car smash-up leaves Jorge and Jeff with their hands full and the crew has to clean up a 30,000 pound truck spill in the middle of the night before morning rush hour. But when the guys mess up and break one of O'Hare's best wreckers, an angry Bill lets them have it!

A blizzard pushes the O'Hare guys over the edge as the recoveries get even riskier. Jameson is challenged by a car that crashes over an interstate guardrail, Dwight is ready to quit after a non-stop slew of wrecks, and the team works into the night on an out-of-control minivan as passing cars put their lives in peril.

The temperature in Chicago may be below freezing, but the wrecks and Bill's temper are heating up! A flatbed carrying tons of cargo ices over, a tractor trailer burns to a char and a semi flies off the road. The new female safety manager Angela butts heads with the O'Hare guys after their dangerous encounters.

A cement truck falls on its side; a tractor-trailer is wedged under an overpass; a dump truck breaks an axle.

A car goes through the front of a house; a semi gets stuck in the mud; an axle needs fixing on a tractor-trailer; a visit to a tow show in Florida.

A garbage truck flips over on an exit ramp, one operator has to deal with three accidents in one hour, a pickup truck gets stuck on railroad tracks, and a driver must redeem himself after wrecking his service truck.

A tractor trailer falls to pieces after making a hard turn, a truck gets stuck in the mud, Bill has fun crushing cars, and a pair of semis are bogged down in the mud.

Joey finds a boat foundering on Lake Michigan after getting beaten to a big wreck.

A semi takes out a guardrail; a Bobcat flips into a ditch; a motor home is smashed to bits; Bill and Joey have a weight-loss contest.

A truck slams into the roof of a viaduct and almost falls over, Tryke saves a forklift, a tractor trailer gets bent out of shape, and Marci causes Bill to go over the edge after she leaves town.

After Bill's arm is cut by a shard of glass, he goes right back into the field to clean up a wrecked glass truck.

Joey frees a stranded semi, then returns to the shop to help Bill teach a course on operating a heavy duty tow truck.

A trailer is wedged under a railroad bridge; one of the operators discusses the deaths of his parents.

The O'Hare team get ready for the annual Illinois Tow Show, where drivers compete for the title of best wrecker in the state.

O'Hare Towing moves to a new location, but a problem with the phone system threatens to shut them down.

The O'Hare crew battles the rain and darkness to complete the hardest recovery of the year.

.Bill and Marci pay they respects to the tow truck operators who have sacrificed their lives are commemorated at a ceremony.