Bones gets in the middle of a family feud this week. It's the Babcocks versus the Mobleys, with a little murder thrown in. Temperance also deals with her own family problems with dad, Max.
The episode begins with a man and his hog out searching for truffles. Instead, they find the dead body of Tug Babcock.
Booth and the Jeffersonian team get called to investigate when the penetrating wounds on the body indicate murder.
Temperance and Camille fight over the victim's age. Tempy claims he was 80. Camille says the tissue indicates half that age. It turns out they're both wrong. The man was roughly 65 and died of a gunshot wound.
Daisy gets stuck reconstructing the man's shattered pelvis. In doing so, she discovers he recently had a bone biopsy. Further study shows the man was dying of bone cancer.
Angela searches for the bullet while Hodgins looks for truffles. He tells her they are a food delicacy. However, when he tries them in pasta, he discovers there's something wrong with the soil around the area where the body got discovered. It's full of arsenic and other poisonous metals.
Tug's family tells Booth, Tug got killed by the Mobleys, their bitter enemies since the 1800s. The feud began after a Babcock and a Mobley got married and both ended up dying of poison. The assumption was they did it to one another. However, Hodgins and Daisy think it was the poisons in the soil and ground water.
Booth and Tempy question Mobley and get shot at for their trouble. They're shocked to find that part of his house got cut away; the result of a property dispute with the Babocks.
Mobley's confiscated rifle isn't the murder weapon after all. Booth then turns to Mr. Timmons. He holds the mineral rights to Babcock's land after his death. But after interviewing him, Booth's convinced he isn't the killer. But Timmons says he saw a young blonde in the woods the night he took soil samples. It's Sue Bob Mobley, who's in love with and wants to marry Junior Babcock. That's news, however, to his lawyer mother.
Back in the lab, Daisy discovers another person's bone around the bullet. It's that of a Mobley ancestor. However, old man Mobley says the bullets resided in the part of the house the Babcocks tore down. That leads Booth and Bones back to the female Babcock lawyer. But there's no evidence to tie her directly to the murder.
That's when Hodgins realizes truffle spores would have penetrated the clothing of the murderer. After getting a warrant, the team checks all the Babcocks' clothing. It was the lawyer after all. She killed Tug because he wanted to end the feud and bless the marriage between Sue Bob and Junior.
In a side story, baby Christine gets ejected from daycare. So Booth and Temperance search for a nanny. Sadly, no one stands up to Tempy's scrutiny. Finally, Booth convinces her to let her father, Max, care for the child. However, Temperance remains worried given than he abandoned her.
When she calls to check up on the baby and Max doesn't answer, she panics. Booth asks a police friend of his to find Max. He finds him at the park. It turns out Max lost his cell phone, which explains why he didn't answer Brennan's calls.
Still, not certain she can trust him, Temperance doesn't give in to his pleas to help her. Eventually she sees that he wants to make up for past mistakes and grandpa and granddaughter get reunited.