MAIL-ORDER DAD Can you order a dad in the mail? Hunter Walker isn't sure, but he thinks Gunnery Sergeant Matthew Cooper might be the next best thing. The wounded warrior has been his pen pal for months, and now that he's come to Sugar Falls to recuperate, Hunter is over the moon. His mom? Not so much. Maxine Walker has been acting weird ever since Cooper showed up. She seems to get mad whenever the veteran is around, which doesn't make any sense. And now Cooper is acting weird, too. Hunter doesn't understand why grown-ups always say things are complicated when they're really simple. His pen pal soldier and his sassy, stubborn mom belong together. But maybe they need just a little push…