Gunsmoke

After the Stark Gang robs the bank in Dodge, front-man Les McConnell sets several buildings on fire to prevent a posse from pursuing the gang. Matt leaves most of the men in town to battle the flames and takes only Festus and a handful of others to pursue the gang. The gang stops at Mr. Early's ranch and gets fresh horses. When Matt and his men arrive Early tries to obstruct them and send them on a false trail, but one of Matt's men finds the real trail. With very tired horses, they press on. Coming upon another ranch they find that the gang has once again acquired fresh horses and a wagon, but this time the rancher wasn't their friend; he'd managed to hide three horses from the gang. Matt and Festus take the fresh horses and continue after the gang. When they catch up to the what's left of the gang (some were wounded and died, others were killed due to internal squabbles) a gun battle erupts, with Doc in the middle of it!