How do I save Mayor Hamm?!

ok, you know the tnt place that gives you tnt pick up a barrel and throw it at the houses. blow all five up and he will be released hope this helps

First, you must go to Slink dog's farm via the well. Next, you must climb the bridge near the doorway with a picture of a flag above it. Eventually, you will reach a small wall that you must climb up. After climbing it, ride the nearby rail, then climb up the wall of planks. You will see a rail on your left and a door on your right. Through the door is the Bandit Hideout where you will find Mayor Hamm. Upon arriving there, you will find four shacks near you that you must blow up with the TNT barrels. WARNING! Every house contains a few bandits, so be careful. Once you have destroyed the houses above, head to the first TNT shack and turn left to find a tunnel that will lead you to the final bandit house. Upon destroying it, Mayor Hamm will be freed. Use the well to return back to Mayor Hamm and receive your prize. It's a good one.