and sisters. and then, at the 15-minute announcement -- >> 15 minutes away. >> reporter: it was everyone outside. and there they were. and there they were, both frenetic and reserved. and as they came into sight, greeting first their comrades who had been there but come home early, the words you kept hearing floating in the air was "daddy." >> daddy! >> look at daddy! >> daddy! >> reporter: then it was everyone back inside. and then, the formality was dropped. and all the ways to say hello again, the clinging never to let go. a long look, no words spoken. a moment that pushes everyone else away so they could reconnect. and, of course, this. >> welcome home, daddy! >> reporter: john donvan, abc news, washington.