While other emergency calls go waiting, Roy (Kevin Tighe) and John (Randolph Mantooth) are repeatedly summoned to the home of a married couple (Terry Kiser, Anne Schedeen) who are causing each other great bodily injury during their "interpersonal therapy" sessions. Other cases this evening include an industrial fire, which serves to introduce the men of Squad 51 to their new mascot, a sad-eyed dog named Henry. And in a tense climax, John is among those trapped in a tunnel collapse. ~ Hal Erickson, Rovi