RedactedNarrative: On 5/23/2020  at approximately 11 am, Operator 1 & his son launched V1 at the Walling boat access on the Little Sioux River north of Correctionville. They were able to head north toward the Washta access and fish several spots on the river to catch 19 catfish.   After they were done fishing and heading back to the Walling access, the prop blew and sheared a pin.  They started paddling to get to the ramp but the strong current pushed them into a brush pile on the east side of the river.  As they hit the brush pile, the bow lifted up which caused water to come into the Stern of the boat.  The boat then tipped over from left to right and both subjects went into the water. OPERATOR 1 was able to get to shore to call 911 and the son was able to hang onto a log until rescued.  The son was rescued off of the log & transported to shore where his father OPERATOR 1 was located.  OPERATOR 1 was exhausted and complained of chest pain while son had a laceration on his head.  Both individuals were not wearing life jackets.  No alcohol was detected.