you. reporter: mikayla s dad, sergeant lange, and his unit had rehearsed the same routine, just like the other dads, and there they were, from the middle east. the cartwheels and the lifts. everyone watching back in iowa, and mom madison wiping away mikayla s tears. and tonight hey, david, this is mikayla. reporter: that little cheerleader sending us a message about what it was like to see her dad. felt amazing! but at first, i was bawling my eyes out. and then, i figured, oh, wait, that s cheer music. and i looked up at the screen and my dad was doing cartwheels. reporter: the dad doing cartwheels halfway around the world for the daughter he can t wait to come home to. sergeant lange, come home safe. you and your daughter are definitely america strong. i m david muir. i hope to see you right back here tomorrow. good night. the power of the pacific. the waves and the wind prove too