Season 2: Redemption

So Vincent goes to the hospital, steals some scrubs, sneaks into Jacob’s
room and prepares to inject the mystery substance into the quarantined patient.
Just then, his former mentor Dr. Marcus bursts in and threatens to call
security. Vincent pleads with Dr.Marcus to trust him and manages to convince
the good doctor to allow him to inject his patient with the unidentified  substance….. Jacob was clearly dying so… why not?  Dr. Marcus tells Vincent this had better
work.