The Hecks are pleased to learn that Mike's brother, Rusty is getting married. However, the joy is short-lived, when they discover that the wedding is to be held at their house. Meanwhile, Brick cannot attend a party that same day, due to the nuptials.

Axl wants to spend time with his friends when he comes home for Christmas; Sue's allergies threaten to ruin her holiday; Brick's lie is uncovered.

Having finally graduated college, Axl tells Frankie and Mike that he's planning on going to Europe over the summer with Kenny. Although Frankie thinks this is a great once-in-a-lifetime opportunity, Mike is less than pleased and thinks his slacker son should be putting all of his summer efforts into finding a job. Meanwhile, Sue begins to panic after she barely scrapes a parked SUV and doesn't hear back from the owner after leaving several notes on the windshield, and Brick discovers that his sudden onset of backaches is due to not sitting in his lawn chair, which was replaced by a normal kitchen-table chair.

Axl is startled to run into nearly all of his former flames at a St. Patrick's Day party leaving him to wonder if it is a sign about his love life; Brick buys an old microfiche machine at a library sale, leaving Frankie and Mike less than thrilled.

Disappointed with the finale of "The Bachelor," Frankie mopes for days; when Sue joins the school's tennis team, Mike tries to toughen her up by complimenting her opponents during matches; Cassidy and Axl consider the future of their relationship.

After almost forgetting that Brick's middle school graduation is only days away, Frankie goes on a mission to right a wrong when Brick discovers that the song he was supposed to sing at the ceremony has been cut. Meanwhile, Sue needs to be at Dollywood to begin her summer job on the same day as Brick's graduation, and Axl takes a job as a country club counselor and finds himself being mocked by a 10-year-old carbon copy of himself.

As Valentine's Day nears, killjoys Axl, Sean and Darrin offer their services to help guys who want to break up with their girlfriends. Mike's romantic text to Frankie erroneously gets sent to a co-worker. Brick has a problem with Frankie's handling of his school artwork collection. Sue gets a surprise when ex-boyfriend Matt invites her to the school's Valentine's Day dance.

Sue looks forward to the trip to Walt Disney World; Brick begs his parents to take him to meet his online girlfriend; Axl waits to learn his final grades.

Frankie learns that Axl's PSAT's are fast approaching and he hasn't been preparing for them. Sue sets her sights high and decides to try out for cheerleading, while Mike decides that Brick needs to toughen up when he gets bullied at school.

Frankie and Mike decide to try a fresh approach to Valentine's Day by having dinner out with friends. But a clueless Mike angers Frankie by refusing to present her with a simple romantic gesture. Meanwhile, Axl can't think of a life-changing moment that's occurred in his life when he's assigned to write a school paper on the subject, Brick is tasked with writing a report on love, and a hapless Sue doesn't understand why her new boyfriend has suddenly turned into a bad kisser.