An attractive reporter investigating the mysterious destruction of an Illinois town stumbles upon a secret government laboratory conducting radiation experiments on vegetables. The lead scientist is eager to help find out what happened. Together they discover that giant grasshoppers are behind the devastation. Worse yet, thousands of them are headed toward Chicago! Can they be stopped... or is this the BEGINNING OF THE END?
Peter Graves
Dr. Ed Wainwright
Peggie Castle
Audrey Aimes
Morris Ankrum
Gen. John Hanson
Than Wyenn
Frank Johnson
Thomas Browne Henry
Col. Tom Sturgeon
Richard Benedict
Cpl. Mathias
James Seay
Capt. James Barton
John Close
Maj. Everett
