Episode 506, "A World Of Their Own"
Mon, Dec 22, 11|10c AM
SEASON 4, EPISODE 418 - As Toth demands Parker's resignation, a serial arsonist wreaks havoc, sparking a career fireman's misguided campaign to mercy-kill his colleagues. Can Parker diffuse all these crises? Or will he surrender to pressures, and step down as SRU sergeant?