Adam and Don become super protective of Lowell when they think he might get back together with his cheating ex-wife; Joe experiences an unexpected side effect from his new pacemaker.

Cast: Matt LeBlanc, Liza Snyder, Stacy Keach, Matt Cook, Kali Rocha, Grace Kaufman, Matthew McCann, Hala Finley, Kevin Nealon, Swoosie Kurtz, Alex Ellis, Chris Renfro, Heather Simpson