As the fourth and final season opens, Gordon enjoys success while Joe works to keep their web project afloat. Cameron extends a business trip while Donna launches a new venture.

Joe and Cameron talk on the phone; Donna promotes her assistant; Gordon's business buckles under pressure from a larger competitor.

Cameron promotes her game at an industry conference; Donna squares off against old rivals; Gordon struggles to support Joe's newest idea.

Cameron buys a plot of land to recenter; Joe and Gordon hire a team of websurfers to map the web; Donna focuses her team on the mission ahead.

Donna struggles with suspicion; Bosworth hits a breaking point; Joe confesses to Gordon while Cameron faces past mistakes.

Donna makes a play for a heavy hitter; Gordon confronts his daughter about an issue at school; Cameron finds a new fan; Joe sees a new side of Haley.

Joe and Gordon discuss Comet's future; Donna takes a vacation; a new collaborator challenges Cameron; Bos and Diane make a life-altering choice.

Cameron helps Donna pack up; Bos makes his famous chili; Joe helps Haley recover a memorable keepsake.

Donna faces a professional crossroads; Joanie takes a trip; Joe unveils Comet's new look; Cameron asks a favor from a one-time collaborator.

In the series finale, Donna celebrates a milestone with her closest allies; Cameron contemplates saying goodbye as Joe confronts an uncertain future.