Brayden Duke, 3, of Scotland, S.D., and his dad, Navy Corpsman, Christopher Duke, who is on leave from Afghanistan and surprised his son in a Batman costume for his upcoming birthday, take in the sites on Sunday, June 1, 2014, in the Delbridge Museum of Natural History at the Great Plains Zoo in Sioux Falls. "I'd give anything for these two," Duke said about his kids, "I love them more than anything." Duke said he had about six or seven months left on his deployment.