I don’t know if this is the answer to what was wrong with Into Darkness, but this solution is funny.
Karen Wadsworth has the unique power of suggestion and believes she can use it to kill. You’ll recognize Joanne Linville of Star Trek Romulan commander fame.
A dragon lady injects three martial arts fighters with a serum that turns them into zombie-like assassins, and she sends them out against her enemies.
Cannonball McKay runs the local Wells Fargo Stage franchise and when there are a bunch of robberies the Lone Ranger becomes suspicious and must figure out who is bad and good.