See the emotional moment Beth and Duane 'Dog' Chapman learned her cancer returned

Beth Chapman will make her final television appearance on Wednesday’s episode of Dog's Most Wanted — and it's going to be an emotional one. A clip previewing tonight's episode shows the moment Beth and Duane "Dog" Chapman learn her cancer is not responding to treatment. Beth, Dog and their daughter Cecily are driving when they receive a call from Beth's doctor.

"I got some test results back on your immunotherapy," the doctor begins. "I hate to say it, but unfortunately, your tumor is not improving based on the immunotherapy."

NEW YORK, NY - APRIL 24:  Beth Chapman and Dog the Bounty Hunter, Duane Chapman visits the SiriusXM Studios on April 24, 2015 in New York City.  (Photo by Ilya S. Savenok/Getty Images)
Beth Chapman and Duane "Dog" Chapman visits the SiriusXM Studios on April 24, 2015 in New York City. (Photo: Ilya S. Savenok/Getty Images)

Immunotherapy, sometimes called biotherapy, is treatment that uses certain parts of a person’s immune system to fight the disease.

"I'm thinking that I need to advise you to start with some chemotherapy," the doctor continues. "I need to schedule a time to get you in as soon as possible. Would next Monday work?"

A shaken Beth replies, "No, no, no. I need to process it first and then call you back, OK?"

"It's totally your decision. I just wanted to let you know what the results were," the doctor concludes. "Ultimately I know you and Dog will make the right decision."

Beth died June 26. She was first diagnosed with stage II throat cancer in 2017 and announced she successfully beat it months later. But cancer returned in 2018. A family spokesperson said that she had stage IV lung cancer the second time.

Beth's battle has been featured on Dog's Most Wanted. While promoting the series Dog, who wed Beth in 2006, revealed how his outlook on life changed after her passing.

"I'm not afraid to die anymore," he shared in a recent interview, explaining that, when he’s about to knock down a door during a dangerous bust he says to himself, "Here I come, Bethy." Dog imagines his wife in a garden in heaven, saying, "Big Daddy, it took you a long time."

"I told my camera crew after she [passed], 'If something happens to me, you'd better get that shot,'" he added. "They're like, 'Boss, we will.' I'm not afraid to die now, because I know where I'm going and who I'll get to see again."

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