Stillman asks Rush and Valens to reopen the 1980 case of an 8-year-old boy found buried in a snowdrift.
The team finds a rape victim clinging to life after being beaten, and Horatio suspects an imprisoned rapist is somehow responsible for the attack.
The detectives finally get a break in the ongoing serial killer case; McDowell announces her pregnancy.
A law student offers to help Monk get back on the police force on the condition that he help her find her grandmother's kidnappers.
The suicide of a former police friend disturbs Sullivan; an illegally parked car causes a delay in an emergency response.