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The penguins wash ashore for an annual takeover. Among them are longtime soul mates, a pair of newlyweds — and a misfit who needs professional help.

Junior settles in at the conservation center, the Bougainvilleas run into trouble with the locals, and the Culverts prepare to lay their first eggs.

While Mrs. Culvert braves the heat to protect her nest, Junior builds his strength in rehab. Mr. Bougainvillea faces danger to feed his family.

The Culverts split up in the wake of a heartbreaking loss, and a fishing trip takes Mrs. Bougainvillea away from home. Junior hits a major milestone.

The Bougainvilleas' chicks start exploring on their own. The Courtyards discover that they’ve built their nest behind a home inhabited by humans.

Lady Courtyard’s commute takes a sharp turn, unlikely saviors scare off the Bougainvilleas’ bullies, and the Wheelbarrows’ teens get some tough love.

A female admirer follows Lord Courtyard home — but his lady isn't amused. The Wheelbarrows want to lay more eggs. Twig's ready to set out on his own.

Nature reclaims the streets of Penguin Town, Mr. Bougainvillea faces off with a fierce predator, and the blues may finally get to fly.