As Bones, Zach and Hodgins headed for the crime scene, Bones' cell phone started to ring. "Brennan," she said when she answered. "Hey it's Booth. I need you to do me a really big favor," he said over the phone. "I can't right now. I'm on my way to a crime scene at the beach," she said. "I'll meet you there. "I'll be bringing someone with me who might be my sister," he said as he hung up. "Sister?! Hello?!" she asked as she realized he had hung up. "Booth has a sister?!" both Zach and Hodgins said at the same time. "Apparently. He's bringing her with him when he meets us here," she said as they arrived at the beach.

"I know that you don't know me, but would be willing to go somewhere with me so I can ask about the test?" Booth asked as he got up. "Sure. Where are we going?" Sarah asked. "Beach. My friend is a forensic anthropologist. She's investigating a crime scene at the beach," he said as they headed out the door.

The beach was crowded with cops and news teams. Bones flashed her badge at an agent in front of the tape. "Dr. Temperance Brennan, Forensic Anthropologist. These are my assistants Zach Addy and Jack Hodgins. Where's the body?" she said. "Over here Dr. Brennan," said Agent Mulligan. Bones walked over and said; "What time was the victim found? Hodgins go ahead and get samples," she said. "Around noon. Surfers found him. How long would you say he's been dead?" he asked. "About 20 years. Any ID found on him?" she asked bending down to examine the body. "No, but by the look of his hands, no fingerprints either," Mulligan said. "Victim's male, about 20-30 years old, Caucasian," she said into the recorder she had pulled out of her pocket. "Can you tell me cause of death yet?" asked Mulligan. "No. I'll know more once we get him to the lab," she said.

Suddenly they heard the sound of a car pulling up. Booth and a woman got out of the car. Booth walked up to Mulligan and said; "I see you changed your pants, Mulligan." "Booth who's that?" asked Bones. "This is Sarah Diamore. We seem to think that we have the same father. That's why I need a favor. Could you do a DNA test for us?" he asked. "Sure, but I'm not sure Cam will let me," Bones said, "Guy's let's get this body back to the Lab!"