Kill Me And She'll Never Forgive You (Star Trek)

ARCHER: Who sabotaged the cloak? 
FORREST: Was something damaged? 
ARCHER: I know Admiral Black has an agent on Enterprise. I want the name. 
FORREST: You really think that the Admiral would plant a spy on my ship and then tell me who it is? 
ARCHER: (to Travis) Go to his quarters, search his personal files. Look for messages from Starfleet. 
FORREST: Follow his orders, and you'll be executed as a co-conspirator. 
TRAVIS: Aye, Captain. (but to who, we're not sure)
(Travis leaves) 
FORREST: This isn't like you, Jonathan. You never lusted for power and glory. That's why I trusted you at my side for all these years, because you have no ambition. 
(Archer opens the door and walks in, punches him in the kidneys and throws him against the walls.) 
ARCHER: If that's right, then why are you in the Brig? 
FORREST: (in a strangle hold) Release me and I promise your death will be quick. You won't get that guarantee from the Admiral. Kill me and she'll never forgive you.