Harvey and Louis fight to protect the future of the firm from its past; Alex worries Mike's instincts could risk a client relationship; Donna and Harvey delve into the aftermath of their kiss.

Harvey and Louis are blindsided by an attack against Specter Litt. Meanwhile, Mike can’t turn his back on the clinic when a class action suit overwhelms Nathan and Oliver.

Season Finale. It's all hands on deck as Louis, Donna and Alex defend the firm, while Harvey aids Jessica on a case; Mike and Rachel juggle their commitments to the firm, the clinic and each other.