Brandon meets Dylan McKay, a brooding classmate. As they become friends, Brandon learns that Dylan's bad-boy act masks a hidden life that few people ever see.
J.T. and Rich get locked up in a Mexican prison.
When a mission goes wrong, Sydney's is placed in danger and Marshall is the only one who can save her. Meanwhile, Dixon is exposed to a deadly pathogen released inside APO.
Mark and Vanessa date each other, but their relationship encounters trouble immediately.
In an episode that elapses in real time, Mark and Steve must catch a serial killer in the hospital before the clock strikes nine.
