4x12 - Homicide: Life on the Street

Continuing the investigation in New York City, Egan's wife is questioned by Frank and Tim. Just a few hours later, Egan's wife is killed and Egan's son is seen running. Kendall is taken into protective custody until he gives up the suspect's name. Lennie Briscoe and Rey Curtis come to Baltimore. The suspect tried to escape in a seaplane but is caught. This crossover started on Law and Order S06E13 Charm City (I).