Katie and T find help in unexpected places as questions arise about T's identity—threatening everything. Meanwhile, media attention is drawn to Katie's whereabouts, sending those closest to her into a frenzy.

A dangerous encounter leaves Katie in hot water, as a stranger risks everything to save her. Pieces of the cover-up begin to unravel as Bradley discovers the truth about his wife's "disappearance." But who else may have learned the truth?

Two scientists are recruited to find the cure for a deadly virus, but quickly discover the truth about both the lab and the nature of the experiments being performed there. Armed with this knowledge, the pair must decide what to do next.