Brielle's baseball beau keeps asking her to move in with him, making her wonder if it's time to finally flee the Biermann coop. Meanwhile, Kim and Kroy grow wary of Tracey's white lies, putting her outrageous stories to the test with a polygraph. They also use their sleuthing skills to dig up some disappointing dirt on Ariana.

Kroy dishes out more discipline to Ariana, his already-grounded teenage daughter. Brielle is determined to learn "how to baseball" to impress her Major League-bound boyfriend. Kim and Kroy play private investigator and tail Tracey home, only to discover why they've never been invited.

Kim can't cope with Chef Tracey's feline roommates during a hilarious home makeover. Ariana learns the perils of parallel parking in her first driving lesson. Brielle tries to convince Kim and Kroy that she should move in with her big-league boyfriend Michael.