Christmas marks the anniversary of Nathaniel's death; Nikolai stays with the Fishers while recovering from broken legs; Claire courts danger on the Internet.
Cory and Mr. Feeny try to shed their "safe" reputations by riding a supposedly terrifying roller coaster.
Simone and Sipowicz probe the robbery-murder of an elderly woman whose nephew is found holding the stolen goods; Sipowicz anticipates his baby's arrival.
Cory and Topanga, offended when their friends say they're boring, throw a party to prove they can have fun.
Cheryl urges Jim to behave on St. Patrick's Day.