Kick Play

[Kirby]

This play was posted in an NCAA forum at another discussion board. What would the FED ruling be?

"On fourth down from the 50-yard line, the offense punts. The short punt lands at the 30-yard line where it is touched by a kicking team player. The loose ball is scooped up by a receiving team player at the 20-yard line. During his return, a teammate clips at the 26-yard line. The ball carrier is hit and fumbles. An opponent picks up the fumbled football at the 27-yard line and runs for a touchdown. During his run, a teammate blocks an opponent in the back at the 18-yard line. What is the result of this play?"