Julia Walker seems to have survived her encounter with Peter Farragut but her memories are incomplete and she isn't truthful with Alan about just what happened. Alan's full attention is on Peter who surprisingly turns himself in. At Dr. Hataki's insistence, they turn an abandoned floor into an isolation wing, not only for Peter but for all who may be infected. The infected monkey Doreen found disappears from the lab but Balleseros has a solution for her. When she tries to grow the virus in the lab, she gets surprising results. Sarah develops a rapid response test and they find nearly one-third of the lab workers are infected.