 As tests are run on Carys, Gwen feels uncontrollable urges to kiss her, showing that Carys is emitting high levels of pheromones, effectively becoming a "walking aphrodisiac", but the gas is also slowly killing her.Later, Carys escapes from her cell after seducing Owen.Jack attempts to apprehend her, but she manages to get hold of a jar containing a severed hand, which Jack finds valuable.