NCIS investigates after two men are blown up by their own explosives while attempting to break into a military base. Also, Callen wants to take the next step with Anna, and Sam moves in with his father, Raymond.

Alan Toy, Christine Horn, Dani Scott, Jeffrey Doornbos, Kavi Ramachandran Ladnier, Natalia Del Riego, Richard Gant, Roger Davies, Tess Rutherford, Vyto Ruginis