In Suits Season 5, Pearson Specter Litt is still dealing with the consequences of Louis learning Mike's secret. The firm is dealing with personal difficulties, internal strife, and a significant legal problem that threatens everyone's future.

The following are important storyline points:

• Harvey's Struggles: After Donna leaves him to work for Louis, Harvey gets treatment from Dr. Paula Agard to deal with his abandonment concerns and struggles with panic episodes.
• The dynamic between Harvey and Donna: Harvey is greatly impacted by Donna's departure, but they gradually reestablish their connection as she gets used to working for Louis.
• Mike proposes to Rachel, but his secret is compromised when a bitter former coworker named Claire reappears and subsequently when a determined U.S. lawyer named Anita Gibbs looks into his false past.
• The alliance between Louis and Donna: Louis becomes more intimate with Donna, but he battles his feelings of jealously and insecurity, particularly in relation to her relationship with Harvey.
• The Arrest: After being revealed as a phony attorney, Mike is arrested for fraud on his wedding day, marking a dramatic conclusion to the season.

This cliffhanger threatens to ruin Mike's career and the business itself, setting up a high-stakes legal battle for Season 6.