World War II is raging, and an American general has been captured and is being held hostage in the Schloss Adler, a Bavarian castle that's nearly impossible to breach. It's up to a group of skilled Allied soldiers to liberate the general before it's too late.
| Editing | John Jympson | Editor |
| Sound | Ron Goodwin | Original Music Composer |
| Camera | Arthur Ibbetson | Director of Photography |
| Directing | Brian G. Hutton | Director |
| Production | Elliott Kastner | Producer |
| Production | Ted Lloyd | Production Supervisor |
| Art | Peter Mullins | Art Direction |
| Crew | Fred Hellenburgh | Special Effects |
| Writing | Alistair MacLean | Story |
| Writing | Alistair MacLean | Screenplay |
| Crew | Richard Parker | Special Effects |
| Costume & Make-Up | Arthur Newman | Costume Design |
| Camera | John Jay | Still Photographer |
| Sound | Jonathan Bates | Sound Editor |
| Camera | Paul Wilson | Camera Operator |
| Crew | Paul Stader | Stunt Coordinator |
| Lighting | Bob Bremner | Gaffer |
| Directing | Penny Daniels | Continuity |
| Art | Mickey Lennon | Assistant Property Master |
| Camera | David Wynn-Jones | Clapper Loader |
| Visual Effects | Tom Howard | Visual Effects |
| Production | Denis Holt | Associate Producer |
| Production | Jerry Gershwin | Executive Producer |
| Sound | John Bramall | Sound Recordist |
| Crew | Gillian Aldam | Stunt Double |
| Costume & Make-Up | Yvonne Blake | Costume Design |
| Costume & Make-Up | Tony Sforzini | Makeup Artist |
| Production | Tom Sachs | Unit Manager |
| Directing | Colin M. Brewer | Assistant Director |
| Directing | Yakima Canutt | Second Unit Director |
| Directing | Anthony Waye | Assistant Director |
| Directing | Patrick Clayton | Second Assistant Director |
| Directing | Chris Kenny | Second Second Assistant Director |
| Art | Arthur Taksen | Set Dresser |
| Art | Peter Hancock | Props |
| Sound | J.B. Smith | ADR & Dubbing |
| Sound | Richard Best Jr. | Foley Artist |
| Sound | Peter Dobson | Assistant Foley Artist |
| Sound | Michael Hickey | Sound |
| Crew | Del Baker | Stunts |
| Crew | Peter Brace | Stunts |
| Crew | Paul Stader | Stunts |
| Crew | Tim Condren | Stunts |
| Crew | George Lane Cooper | Stunts |
| Crew | Jack Cooper | Stunts |
| Crew | Billy Cornelius | Stunts |
| Crew | Tom L. Dittman | Stunt Double |
| Crew | Jim Dowdall | Stunts |
| Crew | Steve Emerson | Stunts |
| Crew | Roy Everson | Stunts |
| Crew | Max Faulkner | Stunts |
| Crew | Harry Fielder | Stunts |
| Crew | Tex Fuller | Stunts |
| Crew | Romo Gorrara | Stunts |
| Crew | Richard Graydon | Stunts |
| Crew | Frank Henson | Stunts |
| Crew | Alf Joint | Stunt Double |
| Crew | Alf Joint | Stunts |
| Crew | Rick Lester | Stunts |
| Crew | Jimmy Lodge | Stunts |
| Crew | Dave Newman | Stunts |
| Crew | Terence Plummer | Stunts |
| Crew | Eddie Powell | Stunts |
| Crew | Eddie Powell | Stunt Double |
| Crew | Joe Powell | Stunts |
| Crew | Nosher Powell | Stunts |
| Crew | Terry Richards | Stunts |
| Crew | Doug Robinson | Stunts |
| Crew | Bill Sawyer | Stunt Double |
| Crew | Bill Sawyer | Stunts |
| Crew | Jack Silk | Stunts |
| Crew | Jimmy Thong | Stunts |
| Crew | David Watson | Stunts |
| Crew | Les White | Stunts |
| Crew | Dave Wilding | Stunts |
| Crew | Terry Yorke | Stunts |
| Camera | H. A. R. Thomson | Camera Operator |
| Camera | Douglas Adamsson | Aerial Camera |
| Lighting | Bob Bremner | Electrician |
| Camera | David Cadwallader | Grip |
| Camera | Denis Fraser | Grip |
| Camera | Ginger Gemmel | Camera Operator |
| Camera | Allan Jones | Focus Puller |
| Lighting | Edward Michael Perry | Electrician |
| Camera | Kelvin Pike | Camera Operator |
| Camera | Graeme Scaife | Clapper Loader |
| Costume & Make-Up | Elsa Fennell | Wardrobe Supervisor |
| Editing | Alan Strachan | Assistant Editor |
| Sound | Ron Goodwin | Conductor |
| Sound | Brian Couzens | Orchestrator |
| Sound | Arthur L. Frantz | Musician |
| Sound | Ron Goodwin | Orchestrator |
| Crew | Al Lettieri | Dialogue Coach |
| Production | Norma Garment | Production Secretary |
