EW has some scoop on the prequel movie with Bruce and how it'll fit into season 5 before it airs:
In our convo with Bruce Campbell, the actor spilled some juicy deets on the upcoming Sam Axe-centered Burn Notice TV movie, which shows us Sams last CIA mission in the mountains of Colombia.
[Sam] sees some events go down that change the initial plan, and he takes matters into his own hands at great risk to himself and others with a small group of misfits to try to right a bad situation, Campbell said. Its a David and Goliath thing.
The Jeffrey Donovan-directed movie, which Campbell says will introduce us to the mature side of Sam via an emotion-heavy mission, is scheduled to air in spring before the start of Burn Notices fifth season. [People] should watch it because thats the only way theyre going to get the whole [season 5] story, Campbell said. There is possibly a character and story elements that will linger forward and not in a good way. Something from Sams past might come back to haunt him.