Lungs - Season 3 (2014)

Daniel searches desperately for Grace after she jumps off a cliff. Cleo convinces Saree to follow her off the trail to a place that connects to her key necklace.

Daniel and Sherlock begin searching for Grace. Saree continues following Cleo. Grace learns more about the mysterious witch.

Saree questions following Cleo and her connection to her key necklace. The witch confronts Grace about Louis. The Jackal arrives on the trail.

After breathing in some of Cleo's cloves, Saree hallucinates her dead husband. Grace decided if she wants to continue on the trail.

Sherlock and Daniel chase after a boy they run into on the trail. A shocking discovery is made.

The witch tells Grace about the original founder of the trail. In 1904, Hope grieves the loss of her three children. Grace runs into a familiar person.

Peter struggles to survive when he crashes his car into a tree. Meanwhile, Sherlock and Daniel try to figure out where he went. Cleo finally bring Saree to an intriguing place that could connect to her key necklace.

Saree tries to understand the connection between the key she found and the tree of keys. Cleopatra reveals why she was on the trail. Peter confronts Grace about her behavior on the trail.

Saree hears shocking news about Grace. Sherlock faces issues of his own.

The group moves forward in different directions on the trail.