Annalise discovers there's a surprise witness who threatens her case; Connor tries to persuade the K3 to go along with a new plan; a lie between Frank and Bonnie threatens their relationship as the killer is finally revealed.

Annalise's murder trial has arrived, but Tegan's history complicates her role as counsel. Whilst Nate visits Jorge Castillo in prison with a proposition, news breaks about Xavier. Bonnie works to help Annalise use Hannah Keating's past as blackmail.

Annalise learns unexpected and shocking details about Sam's past. Meanwhile, Connor and Michaela feel the pressure when the FBI learns there is new evidence in the case; and Frank and Bonnie's history is explored, revealing what originally fractured their relationship.

Annalise is forced to fight for her life while Gabriel approaches Michaela, Connor and Oliver with a theory about Sam's murder. Frank and Bonnie have a heart-to-heart.

Annalise's disappearance leads to panic and paranoia as Michaela and Connor consider taking a deal in their cases. All the while anxious, everyone mourns Asher's death as Gabriel holds on to key details about his hug.

Annalise's disappearance is uncovered, and the fallout affects everyone. Following Asher's death, Michaela and Connor are booked on murder charges and forced to make the most difficult decision of their lives. Bonnie reveals a secret about Tegan, and Gabriel becomes a potential murder suspects. 

On the eve of graduation, Oliver gifts Connor, Michaela and Asher something unexpected. At the dean's cocktail party, Annalise learns disturbing news. Later, Michaela receives a surprise phone call, and the FBI informant is finally revealed.

Bonnie's world is turned upside down when a mysterious accident leads her to a hard realization; the students compete for a large cash bonus during the final exam, where they must come up with the best defense for a conspiracy-to-murder charge.

Gabriel is first chair on a case defending a teacher involved in a school shooting, and this case hits particularly close to home for both Gabriel and Annalise. Elsewhere, Annalise attempts to discourage Tegan from her new quest to right a wrong, all while Oliver makes a shocking confession.

Annalise intervenes in Michaela's relationship with her father and asks for his help in return. Because Nate still doesn't trust Tegan, he attempts to get in good with someone who was once close to her. After Asher reunites and has an unpleasant conversation with his estranged mother, he shares a meaningful moment with Michaela. Elsewhere, Connor finally learns why he was originally picked for the Keating 5.

During therapy, a young Annalise is forced to acknowledge a very emotional and pivotal reality that makes her admit a hard truth. Meanwhile, a brutally beaten Frank returns home with a secret to share about Laurel's disappearance. Elsewhere in an attempt to get to know her father, Michaela accepts an offer to work alongside him but quickly learns that it's not all that it's cracked up to be.

The FBI continues to interrogate Conner which leads him to panic under the pressure. Meanwhile, Annalise, Tegan and the students defend a woman accused of violating a disabled man's civil rights for developing a dating app that discriminates against him. Elsewhere, Bonnie helps Nate get more intel on Tegan while Michaela and Gabriel travel to New York to track down her father.

After Michaela's courtroom tactics do more harm than help, Annalise draws on memories of Sam to guide Michaela back to the winning path. Meanwhile, Connor bites off more than he can chew in his effort to reunite a family, forcing Tegan to call in a favor and fix his mess. Frank enlists Oliver's help to follow a lead on Laurel; and Gabriel learns new information about Michaela's birth father.

As Michaela, Asher and Connor gear up for their last semester of law school, they take on a weighty case involving an illegal immigrant who wants asylum; Michaela boycotts going to class after a blowup with Annalise about her father.

Annalise struggles with the personal toll that Laurel and Christopher's disappearance has taken on everyone. Meanwhile, the remaining Keating 4, Oliver, Frank and Bonnie disagree on the possible reasons behind Laurel's disappearance. Tegan handles the aftermath of Emmett's apparent poisoning, and Gabriel wants to take his budding relationship with Michaela to the next Level.