Things are anything but business as usual when Harvey and Mike find themselves at odds with a tenacious U.S. Attorney. Scottie and Harvey can’t seem to get on the same page and Mike and Rachel clash over plans for the future.

Both Mike and Jessica lean on Harvey for support when things from their respective pasts throw them off their game.

A major client demands that Harvey and Mike perform an unpleasant task; Louis faces a difficult challenge; Rachel collects an old debt.

Harvey and Stephen clash over Ava's case; Harvey and Jessica strategize; Louis gets Rachel's help with a broken contract.

A persistent attorney goes after one of Harvey's clients; Mike is faced with a difficult decision; former name partner Charles Van Dyke returns with revenge on his mind.

Cameron continues to use dodgy tactics on Ava's case; Rachel visits law schools; Mike reflects on the past.

As Ava Hessington’s murder trial begins, Harvey, Mike and Jessica fight off betrayal from both inside the firm and out. Meanwhile, Louis and Donna seek to even the score with those who have done them wrong.

Jessica's new partnership is tested; Harvey must prove a high-profile client's innocence; Mike tries to manage the fallout from his revelation.

Louis offers Mike a future-changing case; Harvey and Jessica work together to bring down an old nemesis.

Trust issues are brought to the forefront; Harvey and Scottie battle again; Louis wants to handle the dissolution talks; Mike wants to move forward in his relationship with Rachel.

Cameron has Harvey's client arrested for murder; Katrina tries to win over Louis; a British version of Harvey arrives at the firm.

Harvey’s defense of Ava hits a roadblock when the interests of her murder trial are at odds with Louis’ work to thwart a hostile takeover of Hessington Oil by a rival businessman.

An old nemesis returns; Harvey and Scottie are on opposing sides again; Louis ends up in Sheila's crosshairs; Mike and Rachel are under Jessica's scrutiny.

Things get complicated when Harvey mixes business with pleasure and gets caught between Jessica and Scottie. Painful memories plague Mike as he uses a case to exorcise demons against an old foe, while Louis’ suspicions threaten to expose Mike.

Harvey faces an old rival from law school; Jessica tries to stay out of Louis and Scottie's feud.

Lines between the personal and the professional get blurred when Harvey and Stephen work together on Ava's case, and Mike invites Rachel to join him on a case that gets complicated when his secret falls in the line of fire -- with Rachel's parents.