Wylie is a lazy engineer. Landry is a Sergeant specialising in Armour. They have never met but their lives become entangled when Landry must take the tank Wylie designed into combat. Wylie is waiting for his employer to go out of business when he meets another engineer who gives him a disk with the plans for a system that will save his employer. The other engineer is dead moments later leaving Wylie with the disk and credit for the design. Suddenly Wylie is no longer a hack, but the saviour of his company and finds his life is no longer the same.
Unfortunately the movie Best Defense is not yet available on Paramount Plus.
| Writing | Gloria Katz | Screenplay |
| Camera | Donald Peterman | Director of Photography |
| Production | Gloria Katz | Producer |
| Writing | Robert Grossbach | Novel |
| Directing | Willard Huyck | Director |
| Sound | Patrick Williams | Original Music Composer |
| Editing | Sidney Wolinsky | Editor |
| Writing | Willard Huyck | Screenplay |
| Art | Peter Jamison | Production Design |
| Sound | Rick Kline | Sound Re-Recording Mixer |
| Sound | Victoria Martin | Sound Effects Editor |
| Production | Austen Jewell | Unit Production Manager |
| Sound | Pat Suraci | Boom Operator |
| Sound | Richard Stone | Music Editor |
| Sound | Gary S. Gerlich | Sound Effects Editor |
| Directing | Louise Jaffe | Script Supervisor |
| Production | Dianne Crittenden | Casting |
| Sound | Donald O. Mitchell | Sound Re-Recording Mixer |
| Art | Bo Welch | Art Direction |
| Crew | Everett Creach | Stunt Coordinator |
| Sound | Frank E. Warner | Supervising Sound Editor |
| Production | Robert Latham Brown | Unit Production Manager |
| Editing | Martin Cohen | First Assistant Editor |
| Camera | Elliott Marks | Still Photographer |
| Costume & Make-Up | Kristi Zea | Costume Design |
| Sound | Gregg Landaker | Sound Re-Recording Mixer |
| Art | R. Chris Westlund | Set Decoration |
| Sound | Robin Gregory | Sound Mixer |
| Camera | Laurie Ridley | Still Photographer |
| Crew | Richard Johnson | Special Effects |
