When Svensson and Associates' receptionist Nina discovers she is not her father's biological daughter, Abigail builds a case against the fertility clinic where Nina was conceived. Synopsis: After Nina discovers she is not her father's biological daughter, Abigail traces a history of malpractice at the fertility clinic where Nina was conceived. Abigail predicts a huge civil claim case, which means lots of capital for the firm - but she tells Harry she will only work on the case with Daniel, who is leaving. Meanwhile, Lucy is fully committing to parenthood as Maggie embarks on in-vitro, and Harry weighs an exciting new relationship against the prospect of losing his kids. Abigail prepares to move back home with Frank and the kids, but is Frank having second thoughts?

Abigail and Daniel represent Trish and Kim, two sisters who are being sued by their estranged mother for parental support. To win their case, the lawyers must prove that Trish and Kim's estrangement from their mother is due to her emotional abuse. Surprisingly, Abigail finds herself identifying with their imperfect mother because she has been such an imperfect one herself. Meanwhile, Daniel debates leaving Svensson for a rival firm; Lucy is melancholic as her deceased mother's birthday approaches; and Harry goes viral after making a public gaffe that is #problematic. And Abigail is hopeful when Frank agrees to adjust both their custody arrangement, and their living situation.

Abigail is in over her head when she agrees to defend her friend Elaine, who turns out to be an anti-vaxxer. Elaine's ex-husband refuses to allow their daughter to fly to Germany without first being vaccinated. As Abigail finds a way to challenge this (perfectly reasonable) request, she wonders if her loyalty to a friend is putting Elaine's daughter at risk. Even worse, Daniel is no help on the case. He is still bitter that Harry rejected his partnership proposal and has completely checked out. Meanwhile, Nico gets suspended for forgery, forcing Abby and Frank to reconsider their parenting plan, and Lucy considers confessing to Maggie about her affair.