Blowing Up is Hard to Do - S3.E23

Gary saves a woman from drowning in a pool at a women-only gym, who turns out to be Detective Armstrong's wife. The Armstrongs invite Gary and Erica to dinner at their house; Det. Armstrong is suspicious about Gary saving his wife, and accuses him of trying to kill her. Erica decides to end her relationship with Gary, and leave Chicago. Meanwhile, Gary has to prevent two places from blowing up after a manifesto is sent to the Sun Times and the TV station, both of which refuse to read or publish it, and then are targeted by the people who wrote it.