Jane and Fischer investigate a murder at an oil fracking site, while Rigsby and Van Pelt travel to Austin to help investigate suspects in the string of attacks on former CBI team members.
The girls celebrate Charlotte's 36th birthday with a trip to Atlantic City that also serves as a nice break for Miranda from the hassles of nappies and spit-up. Meanwhile, Samantha decides to address Richard's wandering ways once and for all.
Charlie gets tired of Alan's mooching and reaches the breaking point during the brothers' double date. Meanwhile, Jake is left home alone for the first time.
Charlie discovers an ex has a child that looks remarkably like him.
Mike comes to Susan and Ian's rescue, and after the Pizzeria is robbed, Tom makes a disturbing discovery.
