No matter how hard they try not to, Booth and Brennan still tend to slip back to their old, forensics-laden lives. Just when the couple already got used to days of changing diapers and not examining human remains, the "Bones" season 11 premiere will bring into play "one of the biggest cases" they have ever come across.

In the premiere for the dramedy's new season tomorrow titled "The Loyalty in the Lie," Brennan will be roped back to the business for a case that somehow has a deep connection to her and Booth. She also has to worry about a much bigger problem, which involves her own husband's disappearance.

In a 2-minute clip, Booth bonds with his family. Everything seems to be going smoothly. After getting peed on by his baby boy and discussing "freelance" to his other kiddo, he kisses his family one by one, his kids on the forehead and his wife on the lips. He looks over to them with a distressed expression, as if these kisses were his last.

Booth goes out of the house and never comes back. Brennan can still recall the exact time her husband has gone out – 8:36 a.m. No one knows what has happened or where he is, and so the FBI conducts an investigation into his sudden vanishing. Agent Grace Miller is tasked to lead and starts to shoot Brennan some questions that confuses her. In one clip, Miller addresses Brennan "the suspect's wife."

In another trailer for the "Bones" season 11 premiere, it is made to look as if Booth has been found dead and his remains are unrecognizable. Brennan, who checked the remains herself, insists that they are not of her husband. She goes by this stand and os told to believe otherwise when Booth's gun is also found.

"Bones" season 11 premiere "The Loyalty in the Lie" airs tomorrow, Oct. 1.