Drive them back is probably the easiest of the 5.0 levels. It took a minute to figure out but is not too bad. Stink ants are usually not a problem but for whatever reason were when I was recording. You have 4 days to prepare then the 5th day you fight. Just split up the driver ants and you'll win. Not my favorite level in Empires of The Undergrowth but not bad either.
