[s1e5] Gunner -

While titled "Part Five," this episode prominently features the brutal experiences of B-17 gunners during a disastrous mission over Munster.

Agent Rawlins and his "Orange" team use drone surveillance to track Frank and Gunner. A major firefight ensues in the woods, where Frank and Gunner must fend off highly trained soldiers.

Agents Madani and Stein continue their internal investigation at DHS, becoming increasingly aware of the deep-seated corruption surrounding the Zubair case.

Features a segment with Gunner the therapy dog .

The query could refer to a few different television series, but it most likely refers to Marvel's The Punisher , as "Gunner" is the official title of that specific episode.