Jo's Birthday party rages on. But how will Charlie take Jo's sudden confession? Will Cat finally stop hiding from Kurt? And will Markie and Abby get a moment alone?

It's Jo's birthday. What better way to celebrate, then a surprise party orchestrated and designed by Markie. The alcohol is flowing, the music is bumping, and the purple zebra print streamers are up. So what could possibly go wrong?

With Jo having discovered Charlie is her mysterious phone-man, she has to play it cool until she can decide what to do. Markie discovers something new about herself, and Cat and Kurt present the Checktom Account.

When Kurt comes over to work on the CheckTom account with Cat, sparks begin to fly - and the phone begins to ring. It's up to Jo to "handle it"

Markie goes on a friend date, or so she thinks, while Cat and Jo find themselves in the middle of a war with their landlord, Betty.

While Cat and Markie discuss details of Jo's Birthday Bash, Jo finds herself in the middle of a bet between Charlie and Schultze, but a dinner at the house forces her to juggle both her work life and phone life.

It's the big Gallery Event and Markie must make sure the show goes off without a hitch. Jo's drunk goggles have her seeing Tom Brady everywhere, and Cat find herself in the middle of an awkward encounter.

After an incident at work, Cat must channel her inner dominatrix to make her at home job succeed. Meanwhile, Markie beats around the bush and Jo gets an interesting new caller.

The ladies have to "find their sexy" in order to make Dirty Talk succeed. But one girl finds this a little more challenging than the rest.

Markie "convinces" the girls into joining the chat line. Unfortunately, her expertise in this area are not what she thought they were. Jo and Charlie have an awkward conversation while Cat struggles with keeping momentum on the phone.

When the girls flub on rent, It's up to Markie to figure out how to keep them from eviction. The only hurdle is to get Cat and Jo on board.