When Miri Matteson returns home after eighteen years, she stumbles back into adult life in the coastal town she once knew, while the shadow of her past looms large.
Miri and her neighbour Billy escape to an amusement park for the day but Miri's past continues to chase her. Meanwhile, Caroline attempts to end things with Dom for good.
Miri and Caroline embark on a road trip to visit Oscar's aunt. But, when an accident stalls them, they are forced to discuss how Caroline truly feels about Miri's time in prison.
A terrible coincidence puts Miri back in the community's firing line as she becomes the key suspect in a new crime. Caroline and Oscar attempt to revive their relationship.