While probing the mysterious death of a college student in a car fire, the CSI team finds evidence indicating that a former colleague (Rory Cochrane) may still be alive.
Seeking fulfillment, Jay goes back to college despite Michael's protests; Jr.'s buddies (Damon Wayans Jr., Michael Wayans) decide to turn his old baby crib into a hip new machine.
When Michael finds he cannot fit into an old pair of jeans, he asks an old friend to help him get back in shape.
Diane Russell's decision to leave the precinct is made worse by the manner she goes about doing it; Medavoy and Sipowicz track robbers who prey on the elderly.