Danny convinces Justin to have a one night stand, but when he can't end it quickly, the gang has a "trial" to decide who is a bigger jerk: Justin or Danny. At the bar, Justin hires a new bartender, Candace, who isn't quite getting the hang of her new job. Meanwhile, Leslie thinks a gym is using a suggestive picture of her to their advantage, and the guys decide to take matters into their own hands.
Justin's world is rocked when Nicki returns to Detroit and announces that she's engaged. To prove that he is cool with her moving on, Justin offers up the bar for her engagement party and Danny helps him make an important realization. Meanwhile, Burski continues his misguided pursuit of Leslie, but Candace helps the gang see his romantic side.
In the LIVE season premiere, Justin and Candace debate starting a relationship. (West Coast)
Danny's plans with a woman he brought home for the evening; Justin accidentally becomes a part of their feud.
In order to help out his mom, Shelly has to quit his job, move out of his place, and temporarily live with Danny and Justin. Justin wants to offer the upstairs loft at the bar to Shelly as a more permanent home, but Danny says Shelly will be too proud to accept charity. Justin makes up a story about the bar being robbed and needing someone there at night, and gets the gang to go along with it. Shelly suspects something is fishy, and he uses his "truth hugs" to extract the real story.
Danny and the gang suspect that Candace is getting annoyed with Justin's nonstop romantic gestures, but is afraid to tell him. Danny is able to coax a confession from her while Justin is in costume, listening nearby. Justin worries that Candace no longer likes the "real" him, but advice from Leslie helps save the relationship. In the end, Candace says "I love you" to Justin for the first time, and Justin responds in kind.
The gang all learns that Mike (played by Bianca Kajlich's real-life husband Mike Catherwood) is going to propose to Leslie. Danny is tasked with keeping Leslie distracted, only to hear his sister say she thinks Mike is way more serious about their relationship than she is. Danny then leaks the secret about the ring, making Leslie angry.
Jackie (Christa Miller), the older woman to whom Danny lost his virginity when he was 17, is returning to town. While Danny assures his friends that Jackie can no longer control him like she did when he was younger, it quickly becomes clear that she can still get him to do whatever she wants.
Danny gets mad when Justin plans to set him up with an old high school acquaintance, only to find out that it's Charlotte (Whitney Cummings), a bridesmaid he just hit on from the bachelorette party in the bar. Meanwhile, Brett meets the "gay male friend" at the bachelorette party and sleeps with him, but he later learns the man is the groom.
Candace's dog is accused of fathering a litter of puppies, and she is being pressured to pay $1,200 in "puppy support". Justin vows to get DNA from a puppy to prove Candace's dog is not the father, only to learn the owner of the mom dog is a large, scary man who runs a home for recently released prisoners. Elsewhere, Burski and Leslie have differing views on what their kiss in the previous episode might have meant, while Shelly announces he's hosting a holiday party only to find that all of his friends are heading elsewehere.
Danny is distraught and confused when Charlotte rates him only a 6 out of 10 in the bedroom. After Charlotte explains that Danny is great at sex but not so good at "making love", Justin resolves to teach his friend about intimacy. Meanwhile, Candace gets advice from both Charlotte and Leslie on how to act sexier for Justin.
Brett is preparing to take the U.S. citizenship test, but loses his lucky American flag sweater that his mother knit for him. When Danny and Justin find a street dancer wearing the sweater, they try to win it back by having the bar crew (as "Danny's Boyz") challenge the performer and his crew to a dance-off. Meanwhile, Burski wants Danny to prove his friendship by helping him find the perfect birthday gift for Leslie.
Justin proposes to Candace and she accepts. Justin says he'll be moving in with Candace, making Danny upset, as this is exactly what happened with his former roommate at the start of the series. Justin assures Danny they will remain friends, and Danny eventually proves he's happy for them by helping Candace retrieve her grandmother's ring from Trent. Meanwhile, Leslie seems embarrassed to admit that she and Burski have now gone on multiple dates. When Burski can't keep quiet about it anymore, Leslie finally shows the group that she's enjoying her time with Burski by giving him a long, passionate kiss.