What could possibly have ended the tight-knit thirty year friendship of Tully and Kate, our "Firefly Lane Girls Forever"? We'll learn the answer this season -- but first -- Kate grapples with the painful aftermath of Johnny's ill-fated trip to Iraq, while Tully faces a lawsuit after walking away from her talk show, and must start her career over from the bottom. This leads her to search for answers about who she is and where she comes from -- including a quest to find the father she never met, against the wishes of her secretive hippie mother, Cloud. In the '80s, we see Kate and Johnny first fall in love, creating more than a little drama in the newsroom where they work, as Tully's career rises and she spars (and flirts!) with cocky sportscaster Danny Diaz. She just might have met her match -- that is, if they can stop arguing for five minutes. While in the '70s, teenage Kate and Tully struggle to keep their friendship together as Cloud goes to jail for dealing drugs and Tully goes to live with her grandmother, far away from Firefly Lane. As the girls face the tumult of high school apart, they know the one thing they really need is each other.

For decades, childhood best friends Kate and Tully have weathered life's storms together -- until a betrayal threatens to break them apart for good.