For Quahog's yearly harvest festival parade with floats, the theme drawn up by Peter, "The episode of WhosTheBoss where Tony sees Angela naked in the shower", is randomly selected. The float built by Peter, Quagmire, Cleveland, and Joe wins, and they receive the trophy. However, the men cannot agree at whose house the Golden Clam trophy should reside. They decide to place it above Spooner Street, suspended by the statues from the float. The next day the trophy is missing; everyone immediately suspects each other of stealing it, and a level of distrust breaks out, to the point where traps and barriers are set.
Meanwhile, Meg, feeling embarrassed about her lack of a Prada Purse, gets a job at a pancake house. She lets the restaurateur, Flappy, believe that Stewie is her baby so she will get the job. She realizes that allowing customers to think Stewie is a crack-addicted baby and she is his single mother results in higher tips. Stewie, meanwhile, becomes addicted to the pancakes. One of the women there notices the donations, and asks Flappy for Meg's address. She turns out to be a member of Child Protective Services.
On Spooner Street, the neighbors fight over the missing trophy and Joe, Quagmire and Cleveland are quick to declare the Griffin family an abusive JerkAss family, purely through spite and lies. This leads CPS to place Stewie (who is obsessed with pancakes) in a foster home led by politically correct parents where he lives with Islamic, African, Chinese, Sikh, Inuit, and Mexican kids his age. After failing to get it straightened out at the office, the Griffins begin calling out everybody else on Spooner Street for what they said. Brian calls the families out over the trophy, saying that it cost the Griffins their child. The neighbors put their conflict aside to retrieve Stewie.
The foster home breaks apart because of Stewie's obsession with pancakes and the fight over the race of Santa Claus. As it turns out, the politically correct family is more superficial then they first appeared, as they notice Meg's Prada bag. The family decides to trade Meg's Prada bag for Stewie. The street makes up, and they decide to put the trophy mystery behind them.
As it turns out, though, it was Brian who buried the trophy, because of his addiction for digging shiny objects.
!Tropes included in "Love Thy Trophy" include (YMMV goes ''[[YMMV/FamilyGuyS2E5LoveThyTrophy Here.]]'')
* CharacterDevelopment[=/=]EstablishingCharacterMoment: According to a "making of ''FamilyGuy''" special on DVD, SethMacFarlane cites this episode as the one that solidified Quagmire's "heartless sex maniac" persona (more specifically, the scene where he sleeps with the social worker and, after she asked him what he does for a living, he asks her, "Why are you still here?"). Later episodes (such as "Fore Father" and "Jerome is the New Black") expand on why Quagmire is a heartless sex maniac (in "Fore Father," it was because his large-chested mom [who was recently abandoned by her husband] breastfed him as a child, and in "Jerome is the New Black," it was because the one woman he truly loved [Cheryl Tiegs] left him).
* JerkassBall: Meg gets this pretty hard, using Stewie as a faux crack-addict baby to try and get a prada purse.
* LaserGuidedKarma: Meg's scam for making Stewie a crack-addict baby to get more tips for a Prada purse winds up coming back to get her, as she has to trade the Prada Bag to get Stewie back.