After the passengers and crew of a private plane traveling from New Orleans to Washington D.C. are lethally poisoned, all evidence points to the missing chef, Abby’s brother, Luca. Gibbs and the D.C. team work in conjunction with Pride and the New Orleans team to locate Luca and determine why a private tech company was targeted.

Entrepreneurs pitch their ideas for a heavy-equipment adventure company; and a protein-filled pancake mix. Also: A Secret Service agent from Woodbridge, Va., has a solution for men who want to keep their ties looking sharp; and there’s an update on Cousins Maine Lobster, which Barbara invested in during Season 4.