Plot

Sparks fly when Wade Walker crashes the Peeples annual reunion in the Hamptons to ask for their precious daughter Grace's hand in marriage.

Wade Walker (Craig Robinson) may not be a blue blood, but he loves Grace (Kerry Washington), and he's eager to propose. Convinced that his best bet is to make his move while Grace's entire family is present, Wade boldly invites himself to her family reunion, and does his best to make a good impression. Over the course of an eventful weekend, he learns that he may fit in better with the dysfunctional yet well-to-do clan than he ever could have anticipated..

Tyler Perry Presents Peeples centers around the Peeples, an affluent East Coast family celebrating their annual reunion for Moby Dick Day - a Peeples family tradition at Sag Harbor in the Hamptons. Their weekend is interrupted when Wade Walker (Craig Robinson), the fiance of their daughter Grace (Kerry Washington) crashes to propose marriage after being goaded by his brother Chris. Upon arrival he loses his wallet while being chased by the family dog. While at the grocery store Wade notices Virgil (David Allen Grier), Grace's father and a judge having a conversation with an unidentified woman, who is later revealed to be the mayor of the town (It is implied that Virgil is having an affair with this woman. As well as a conversation between Gloria (Kali Hawk), Grace's Sister and her lover Meg (Kimrie Lewis-Davis) unknown to the family.

As the time goes on, Wade begins to learn other things about Grace, such as her older ex-boyfriends, and the fact that she has breast implants. Wade also discovers that Grace's mother Daphne (S. Epatha Merkerson), was a professional singer during the 70's, as well as a recovering alcoholic. Daphne tells Wade that Virgil was a club player & that's how he paid for law college.

At dinner Wade in an attempt to propose to Grace, asks if in tradition of his family can they go around the table and talk about the things they love the most about the people in their live, which end abruptly as Virgil reminds him that he had to pay after Wade had no money at the store; due to his wallet being lost. Virgil leaves home to play saxophone at his local club. Wade later decides to go to the club to see Virgil play, but realizes he is not there. While riding through the park near the beach he encounters a group of nudists, and Virgil is one of them.

Returning to the guest house, Wade confronts Grace, about her breasts, to which she is quite honest, then lures him into playing naughty schoolgirl. Virgil returning home from his swim peers though the window and runs off in disgust. Wade discovers that Grace's brother Simon (Tyler James Williams) a talented musician, is also a thief, and while looking around in the Peeples house he finds Daphne's costume head piece from her performer days; and begins to sing with it on his head but is interrupted by Virgil.

Wade's brother Chris (Malcolm Barrett) shows up unexpected to "help" Wade propose to Grace, and because of a Gamma Phi sweater he borrowed from his roommate, Virgil thinks they are fraternity brothers, and invites him to stay at the house as well. Later at Nana Peeples'(Diahann Carroll) house Wade gets Daphne to sing, while Virgil looks on in disgust, and Chris thinks he may have a chance with Gloria, which Meg becomes politely angered. Upon returning to the house Daphne finds her expensive earrings have been stolen, Virgil immediately concludes Wade is the culprit.

Wade and Chris are found later at the bar, to which they see Simon attempting to talk to an uninterested woman sitting at the bar. They follow him into the bathroom and pretend to be a couple of thugs but resign to telling him to take his mother's earrings back home and stop stealing. Chris returns to the guest house afterward to find Gloria, while Wade finds Virgil at a sweat tent, and attempt to sweat it out for Grace's hand in marriage, which leads to him burning the tent down. The next day Wade meets Grace at the Moby Dick Day celebration, she tells him he looks terrible and offers him a drink from a thermos with a mushroom drawn on it.

The mayor confronts Wade, and later while Virgil is giving his rendition of Captain Ahab, Wade begin to hallucinate that Virgil is talking to him, which makes him threaten him and charge him with a harpoon, causing him to be knocked unconscious. After awaking at Grace's home, Wade is again insulted by her father, and decides it is best if he Grace and Chris all head back to New York, but Grace decides to stay with her family; so Wade and Chris leave.

Upon the departure of the brothers, everyone begins to spell the truth about what has been going on the house, Virgil admits that he has been swimming with the Humpback Whale , but it is in fact purely non sexual, Gloria and Meg finally tell everyone about their relationship, Simon admits to his constant stealing in order to gain street credibility, and Daphne Admits she put mushrooms in her drinks; the final moment is when the dog returns the wallet and Simon pulls Wade's proposal ring from his pocket.

Distraught, Grace falls into her mother's arms realizing Wade was telling the truth. She returns to New York a few days later after not being able to get in touch with Wade but seeing his schedule book; she sees he is playing at a kid's museum. Grace tells Wade she is sorry and proposes to him, and after asking her to trust him and never keep secrets, he proposes to her. Virgil shows up, to finally accept Wade into the family, and the entire Peeples family joins Wade on stage to perform with him for the children. Melvin Van Peebles appears as grandpa Peeples.