Jax's journey begins with two discoveries; his son's harrowing premature birth by Wendy Case, his crank-addicted ex-wife, and the discovery of a life-altering document written by his father who died fourteen years earlier. Drea De Matteo stars as Wendy, whose behavior falls short of what Gemma deems "motherly." Maggie Siff stars as Tara Knowles, Jax's high school sweetheart, who has returned to Charming as a Pediatric Resident. She, too, is in Gemma's crosshairs as we discover that Tara has a darker motive for seeking out Jax's love and trust other than the health of his son.

Source: FX