Spy Tech and Ending

I picked up a book today that covers spy tech and craft. It's for the modern spy of course, but I thought it might help when I get down to the nitty gritty of the script, especially the opening sequence.

I've just about finalized my story (for now). The only thing I'm still working on is the ending. I've come up with a few ideas, but I'm not sure which one works the best or if they work at all:

1) My original idea: Benjamin is caught by a group of redcoats and hanged after drawing them off so William Dawes can alert all of the nearby villages the British are coming.

2) William Dawes draws off the redcoats while Benjamin rides off to tell everyone the British are coming (Matt came up with this idea during class, but even though I'm okay with and plan on changing history a little, I'm not sure if this one works due to the amount of changing I'd be doing, unless I let Dawes live)

3) The Redcoats catch Benjamin and while trying to hang him, a group of Patriots from one of the nearby villages comes to his rescue, under the orders of William Dawes as he was passing through their village. (So far I like this one the best, but I'm not sure if it's too episodic or not)

4) Same as no. 3 except Dawes comes back to save him. (This one is just as feasible but I feel like it defeats the purpose of Benjamin distracting the redcoats to begin with)

Again, I'm not sure if they work, and if they don't I'll continue working on it. If anyone has any ideas, suggestions or advice, I'm all ears

Story

With the exception of a few minor things, I have the bulk of my story pretty much nailed down. My focus for the next three weeks my focus is going to be making those few minor changes and making sure my characters are as fleshed out as possible.