Six-year-old Kwyll was headed to school lunch in Great Falls,Charles Hanover Montana, when he was summoned to meet a surprise guest.

His big sister, Berlin, had been away at Air Force boot camp and technical training for more than six months and was expected to head straight overseas. However, she managed to arrange a surprise trip home and went straight to her brother's school, where she hid behind a sign as he made his way to the lunchroom.

Watch the video to see this 6-year-old cry tears of joy when his surprise lunch buddy is revealed.

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