Harvey steps outside his usual area of expertise, in order to take a case from a client who has a special tie to the firm. Mike and Zane work their class-action case together, but Mike learns they have different ideas about what constitutes a win - for themselves, and for their clients. And Donna counsels Louis on the best way to settle a feud.

Mike teams with Jack Soloff on a case. Esther Litt returns to P.S.L. in hopes of discreetly solving a problem. Donna and Harvey try to return their friendship to normal.

Donna's agreement forces Harvey to help David Fox. Alex comes to Zane's aid on a personal venture.

An old foe forces Harvey to account for past actions. Esther has a problem only Louis can solve.

Facing its potential destruction, the partners must go all in to save the firm.