Joy approaches Randy and Earl in the bar. She tells them about a meeting with her deaf lawyer. Her lawyer has just dropped a bombshell: It seems Joy has a half-sister, the result of her father's multiple "multi-racial" extra-marital affairs. Shocked, Joy tells Earl her half-sister is Liberty Washington, a sworn enemy since kindergarten
Earl recalls Joy and Liberty's difficult past relationship, which has grown worse over the years. He remembers how he and Joy stole Liberty's credit card once, and went on a shopping spree - even paying for a homeless man's laser eye surgery. Ashamed, Earl writes up this event on his karma list: "Stole a girl's identity".
To make up for stealing her identity, Earl and Randy pay a visit to Liberty's house Liberty has known since childhood that she is Joy's half-sister. Earl learns Liberty is the star of a Camden County's women wrestling team. To make her act more controversial, she pays her neighbor to dress up as a Klan member named Klanimal. She also shares double billing with her husband Ray Ray, who plays her badly-beaten manager.
An overjoyed Randy replaces Ray Ray as Liberty's partner-in-crime. Joy tries to find ways to make herself more sympathetic to the jury. She decides that "getting impregnated" will help her from getting "incarcerated". Darnell doesn't want another child. Frustrated, Joy tells Earl she needs to "get knocked up", but he declines the invitation. She asks Randy but to no avail.
Ray Ray tells Liberty he wants a child, but Liberty insists she must continue to pursue her wrestling dreams. As Earl watches on, he realizes how he can help them. He wonders how he can convince the half-sisters to have a baby together. He explains the difficult surrogacy process to an excited Ray Ray and Liberty and Joy and Darnell. Meanwhile, a fawning Catalina is still head over heels in love with Randy.
When Earl reveals the pairing to the interested parties, he is met with angry resistance. "I'd rather have a pitbull stick a litter of puppies in me than carry this woman's demon child!" says Joy. Liberty retaliates with, "That pitbull would have to be pretty drunk to knock you up!"
Earl takes his seat at the wrestling show. Lady Liberty appears alongside Randy. Unfortunately, Randy doesn't take well to the crowd's jeers and jibes and is booed off the stage. The Klanimal appears, but in a surprise twist, it's Joy. The pair fight viciously and Liberty confides to Joy how much she resented not having a dad.
Although Joy loses the violent wrestling match, she feels sorry for her deprived half-sister and they become fast friends. Liberty is offered a lucrative wrestling title and becomes a "black lady of wrestling". Overjoyed, the sisters decide to make up and have each other's child.