Jim's back with Taylor again at some point in the future (the timeline in this show is fairly impossible), telling him who was outside the gates. A couple of them are people who Taylor knows are good, solid citizens. But a science guy named Stanley is more suspicious, since he came with the Sixth Pilgrimage but stayed at Terra Nova. Taylor grills him until Malcolm shows up to defend him, with serves its purpose, because when the disruption's over, Taylor and Jim leave.
Elisabeth and Maddy drop Leah off at school, then embrace and "ooh" and "awww" about how cute it is that she's in school now! After just one day, their little baby's all grown up and going to school. They seem to have forgotten Zoe, though, unfortunately. Poor thing. A new little girl comes along and she's suddenly the invisible girl. Ominous music tells us there's something up as Elisabeth and Maddy walk away from the school and Leah comes back out looking once again the demon child.
Mark tries to ask Jim's permission about something with Maddy when they're interrupted about a break-in at "the McMillan place, Pod D-26." Mr. McMillan tells them he came home to find the break-in, and shows them a hole in the floor. Jim says they need to find out who lived here before and what was buried under the floor, but Washington knows the answer to the first question: This was Mira's old place. Jim finds Leah trying to make a break for the woods. She runs from him, but Washington and her folks corner her and they take her back to Taylor.
Taylor, Jim and Washington discuss Leah when she's right outside and can hear every word. Washington says she's the perfect spy: too young to be suspicious but old enough to be capable. They can't figure out what this container she dug up is, either. It has no seams or visible openings, so it's a puzzle. They call Leah in, and Jim sweet-talks her about being honest. Taylor asks her if she knows what the shiny shell-looking container is. She says she doesn't know; Mira just told her to get it, so she did. Jim asks why she's been lying, and Leah says Mira's got her brother and said she'd hurt him if she didn't steal that box. Taylor sends her to Pod Zero, but she pleads with them: She has to take this to Mira to get Sam back. As Elisabeth's grossing Maddy out with a pustular lesion at the infirmary, Jim suggests to Taylor that they check out the Sixers' camp to see if this boy is really being held captive. Taylor says he can't risk it on the word of a girl who's already lied to and deceived everyone in the colony.