Mira captures Taylor as he inspects Lucas' most recent rock carvings next to a river, but Taylor soon subdues her. Their situation changes rapidly, however, when two slashers stalk them. As Taylor and Mira join forces to evade the vicious predators, Mira shares more about herself and her motives to Taylor and also gives him information about Lucas. Meanwhile, a morse code signal is observed being sent to and from the Sixers and someone inside Terra Nova. Jim and Reynolds nearly capture the person sending it from the colony, but the mole (revealed to be Skye) barely escapes. Elisabeth starts decoding the DNA from a blood drop Jim found, but Skye, an intern at the clinic, destroys the sample. Elisabeth can still determine that it is a female's blood, narrowing the search to 47 suspects. When Skye later delivers an item to the Sixer camp, it is revealed that her mother, Deborah, believed dead, is being kept alive there by the Sixers in exchange for Skye's cooperation. Also, Reynolds declares his intentions about Maddy to Jim. The Ankylosaur hatchling that Zoe has been caring for is growing rapidly and will soon be too old to adapt to the wild, forcing Zoe to face a difficult situation.