Plot summary
Yokas clashes with her mother-in-law over her recovery. Cruz is back on the job, but unhappy that she's back in patrol uniform. Ty and Sully discover a truck carrying sick illegal aliens and the police end up scouring the city to track down one of them who escapes after it's suspected that the aliens may have a highly contagious and potentially fatal disease. Ty is surprised to see his former girlfriend as an assistant district attorney involved in the case.
Credits
Adapted from Wikipedia contributors, List of Third Watch episodes. HTML formatting and reference markers removed.