Windfall is a serial drama television series about a group of people in an unnamed small city who win almost $400,000,000 in a lottery.

A suburban housewife uses a hidden camera to compulsively record everyone around her.

When a lighthouse keeper takes in a seal in need and gives to his children to look after, the whole family is drawn into the shadowy world of illegal seal poaching. The family then finds themselves leading the fight to rid their coastal town of the criminals and save the seals.