In the eighth-season opener, Clay and Quinn face life-threatening injuries after being shot by Katie. Meanwhile, Nathan prepares for training camp in the wake of Haley's pregnancy news; and Brooke and Julian return from Utah newly engaged.
Brooke and Julian are greeted by a surprise guest near Halloween. Elsewhere, Nathan pursues a new career; Clay and Quinn face obstacles as they try to get back into a routine; and Haley and Mia hold an open-mic night at Tric.
Brooke attempts to bond with her future mother-in-law while Julian searches for his best man. Elsewhere, Skills arrives back in town; Nathan faces problems with his new career; and Haley's skills as a counselor are called into question.
Nathan's job takes him to Atlanta, where he meets NFL star Tony Gonzalez (appearing as himself). Elsewhere, the tension between Brooke and Sylvia reaches a boiling point; Chase comes to a decision about Mia and Alex; and Jamie adjusts to his new braces.
Brooke gets an opportunity to return to the company she founded. Elsewhere, Dr. Kellerman's actions have Nathan out for vengeance; Quinn oversees a concert at Tric; and Haley spends time with her newborn.
Tension mounts in the dugout as Nathan, Julian and Clay coach Jamie's first Little League game. Elsewhere, Chase wants Alex to undergo drug testing; and Quinn gets an offer to do a photo shoot in Puerto Rico.
In the eighth-season finale, Haley and Brooke get ready to operate Karen's old café. Elsewhere, Nathan and Clay scout for new clients; Chase takes off for the Air Force; and Mouth and Millicent start cohosting a new morning show.