The Best Episodes Directed By Ciarán Foy

As polar night looms, Gus and his crew arrive at the outpost — but they're not alone. To find Birdie and the cave, they must brave several obstacles.

After a daring rescue, Gus meets an individual well-versed in hybrid history. Amid emotional reunions and eerie revelations, all roads lead to the cave.

General Abbot makes an example out of Gus. Dr. Singh obsesses over his research ahead of an important presentation. Becky crosses paths with a frenemy.

Dani and Miles get an uncanny glimpse of the past. Peter Quint, Rebecca Jessel and their twisted history cast a long shadow.

After experiencing a harrowing scare, Dani tries to teach the children a lesson. Still, the kids have an unsettling way of getting under one's skin.