Wes Cannon

The life of a genius Navy coder employed by Brody's mother, Olivia Brody (Annie Potts), hangs in the balance after the heart intended for his transplant is stolen. Olivia joins the NCIS team as they race to locate the missing organ.

It's Carnival time: Toni Bernette finds Judge Gatling dispensing judicial orders and potables at Galatoire's. Janette Desautel seeks counsel from Emeril Lagasse and deconstructs crawfish etouffee with Al Roker. Sonny falls on the wagon. As Nelson Hidalgo schmoozes, Annie sits in with the Neville Brothers at the Washington, D.C. Mardi Gras Ball.

Antoine Batiste does a good deed, and a homeowner suspects Nelson Hidalgo's deeds may not be so good. Davis McAlary fails to sign Sugar Boy Crawford for his opera, but Delmond Lambreaux gets his father to sign up for assistance from New Orleans Musicians' Clinic. L.P. Everett learns that his headless skeleton was not always so.

As Louise and Alan Shepard bask in the success of his mission, Betty Grissom preps for Gus' launch and turns to Louise for advice. And Annie Glenn grapples with her stutter, anticipating that the press will want to hear from her after John's orbit is completed.