The events surrounding Mike's imprisonment rock Pearson Specter Litt to its foundation in Suits Season 6, resulting in court cases, personal sacrifices, and significant firm changes.

Important story points consist of:

• While incarcerated at Danbury Federal Prison, Mike forges risky relationships, especially with his cellmate Frank Gallo, who wants to get revenge on Harvey. Additionally, he becomes friends with Kevin Miller and works with the authorities to assist him obtain an early release.
• Harvey's Fight for Mike: Harvey risks his own career and strikes arrangements with Sean Cahill in an effort to free Mike.
• Pearson Specter Litt's Struggles: Jessica, Louis, and Harvey struggle to keep the company viable as customers depart when Mike's fraud is revealed. Eventually, they restore their reputation and bring in fresh talent.
• Jessica's Departure: In a startling change of events, Jessica chooses to quit the business and go to Chicago in order to live a more satisfying life. As a result, Harvey and Louis take over as Specter Litt, leading the firm.
• Mike's Release and Redemption: After assisting in the exposure of dishonest authorities, Mike is freed from prison. He first chooses to seek respectable legal employment, but after discovering his love for assisting people as a lawyer, he finally rejoins Pearson Specter Litt as a consultant.
• Rachel's Growth: Rachel continues her law studies, proving her abilities and setting the stage for her future career.

The season ends with the firm in a new era, Jessica gone, and Harvey and Louis struggling to fill her shoes, paving the way for fresh dynamics and challenges in Season 7.