When grieving widower Sam Cooper reluctantly moves to a desert retirement community, he discovers something is lurking beneath its perfect surface.

Still reeling, Sam seeks answers close to home. Renee gets a break in the case of the missing minerals. Judy and Wally face up to painful realities.

Sam and Wally decide to take a risk. Renee and Paz's investigation brings them closer together. Art seeks answers in the desert.

Art savors the fruits of his explorations. Blaine warns Sam that curiosity comes with consequences. Renee makes a shocking discovery.

Sam, Judy and Wally uncover a new side of The Boroughs. Renee and Paz go on a road trip. Blaine tries to convince Claire to take action.

With the entire gang under Blaine's thumb, Sam desperately seeks a way out. Art and Judy hit a breaking point. Wally gets a taste of a new life.

As the anniversary party approaches, Anneliese reveals a painful secret. The gang gets in gear for a high-stakes rescue mission at The Manor.

With Blaine and Anneliese desperate to capture Mother, Sam and his friends put it all on the line to save their neighbors and set things right.