dog sled race. mitch sevie becomes the oldest winner of the grueling 1,000-mile contest, marking his second iditarod win. his son, dallas, won last year's event, becoming the youngest winner. to the victors go the spoils, winning $50,000 and a big old plant. getting the sugar for the win. he also wins a new pickup truck. nice work. >>> british man who was called a hero after wrestling a shark at a beach in australia has now been fired from his job. 62-year-old paul marshallcy was caught on camera by a brew as he rushed into the water to wrestle a shark away from swimming children. his boss wasn't too impressed. turns out he was supposed to be on sick leave for stress when that all happened. he now says he has been fired from his job along with his wife who worked for the same company and was also on sick leave at the time. >> trying out there to save lives, playing superhero, now looking for a new gig. >>> 5:50. coming up. trouble for hundreds of thousands of tax filers. the trouble at h & r block that could delay your dividend. >>> we'll look ahead of the markets for yet another record for the dow. that's ahead in business news. >>> up to 600,000 tax returns issued by h & r block may be