Emile and Mike can't leave their two cats alone as one will viciously attack the other. The couple is at their breaking point with the bloody attacks. Justin and Susanne can't agree on how to handle their energetic Bengal cat who constantly attacks Susan.

An unrecognized impaired sense turns one cat nasty while another cat turns vicious when its hierarchy isn't respected.

Travis and Diane share joint custody of Oscar, but she can't take his obnoxious behavior anymore. Married couple Vincent and Esther disagree on their approach in dealing with their cat Riley's hissing and scratching fits.

Jackson meets a likable cat that's extremely insecure over territorial issues, and another cat with a degenerative condition at odds with its owner's aesthetics and a highly energized second cat.

A cat prevents an engaged couple from planning their wedding, and a live-in boyfriend sees his girlfriend's cat as conniving competition rather than good company.

While Khrys and Michael have a good-cop-bad-cop routine that prompts their cat, Kitty, towards frequent bids for freedom, Don and Joy have stopped having company over due to the ferocity of their cat, Addie.

Mark and Angela have to childproof their home because their cat, Gus, eats EVERYTHING. Stella just chased off Melissa's latest boyfriend with her brutal behavior and shows no signs that she's willing to accept any more gentleman callers.

Melissa fears daughter Mariah's aggressive cat, Miley, will kill her two chihuahuas. Gracie attacks Kristen and Lei daily as well as any of their friends that still dare set foot in their home.

Jackson deals with an unneutered male with no cat language, ready to populate the neighborhood, and an elderly cat drawn to vibration therapy.

In one home, a neurologically damaged cat threatens to tear a couple apart, while in another a pair of warring cats divides a married couple concerned for the safety of their child.