Commander Taylor immediately grants sanctuary to little runaway Sixer girl Leah Marcos. He's even prepared to fight off a return claim, but Miera gives in suspiciously easily when Leah chooses to stay in Terra Nova. Jim lets her stay in the Shannon home, at least until a permanent foster family is selected. Jim can stop Leah just before she could flee the camp with a mysterious item she dug up from Mira's former home. Taylor mistrusts her story she had to fake having ran away because her kid brother is kept hostage, but Jim sets out to the Sixers side. He's captured and released with assurances the boy was never in real danger and a vague claim the Sixers serve the real, secret present-world purpose of Terra Nova, after an invitation to change side. To Josh's mild amusement, Maddy fails her medical training apprenticeship, being unable to stand disgusting symptoms.