In the Season 3 premiere, the wardens search under the ice of a frozen lake for the victims of a snowmobile accident; and the spring thaw comes with encounters with skunks and bears.

Turkey season in the spring keeps the wardens on the lookout for poachers; a porcupine is returned to its natural habitat; a suspicious kennel is investigated and found to contain illegal timber wolf hybrids.

A look at 24 hours of work by Maine wardens includes patrolling for smelt poachers at night; tagging bears with radio collars; and searching for a home invader with a K9 team.

A Jet Ski hit-and-run accident sends the wardens on a search for a suspect with an arrest warrant; a man arrives in Maine after the Boston Marathon bombings in 2013 and leaves a suicide note.

A child on an ATV is trapped by a flash flood; and a teen flips his four-wheeler and must go to the hospital. Meanwhile, the wardens face their New Hampshire counterparts in an endurance competition; and two women who are wanted by the law are found during an investigation of suspicious activity.

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The annual Moose Lottery Festival to win a hunting permit for the fall attracts wardens in civilian clothes. Meanwhile, a warden goes undercover to infiltrate a marijuana-growing operation; a farmer claims a mountain lion is stalking his livestock; and a man with dementia wanders off into the woods, prompting a desperate all-night search.

Wardens patrol Maine's border with Canada in Aroostook County, where a search for smugglers yields a drunk driver with a gun; and a man abandons his pickup truck and enters the woods with a loaded shotgun.

A woman from Tennessee goes missing while hiking the Appalachian Trail, which tests the wardens' search-and-rescue skills on land and from the air for more than a week.

A look at memorable rescues and investigations from the show's first two seasons. Also: The wardens are the honored guests at a baseball game in Portland, Maine.