“The Dex Files” – Dex’s former client Jeremy introduces her to Major Elders who has intel on Benny’s death. Dex, suspicious of the information and looking for answers, investigates a potential cover up involving Benny’s unit in Afghanistan. Elsewhere, Hoffman and his partner, Lee, work closely on a sting operation which shockingly involves a familiar face. Meanwhile, Grey’s newfound relationship with his father is tested on “Stumptown,” WEDNESDAY, MARCH 18 (10:00-11:00 p.m. EDT), on ABC.