Radar Patrol vs. Spy King

Radar Patrol vs. Spy King is a 1949 12-chapter black-and-white spy film serial produced and distributed by Republic Pictures from an original, commissioned screenplay collaboratively written by Royal K. Cole, William Lively and Sol Shor. Kirk Alyn played the lead.

Plot
John Baroda, a neo-Nazi and his alter ego, The Spy King and his aide Nitra, are part of a sabotaging team for a vast defense system of radar stations along the US borders. Radar Defense Bureau operative Chris Calvert comes to the rescue of radar scientist, Joan Hughes, who has been kidnapped by Baroda's henchmen...

Cast

 * Kirk Alyn as Chris Calvert
 * Jean Dean as Joan Hughes
 * John Merton as John Baroda/Spy King
 * George J. Lewis as Lt Manuel Agura
 * Eve Whitney as Nitra
 * Anthony Warde as Ricco
 * Stephen Gregory as Hugo
 * Tristram Coffin as Franklin Lord

Production
Radar Patrol vs. Spy King was budgeted at $164,970 although the final negative cost was $164,632 (a $338, or 0.2%, under spend). It was filmed between 20 September and 12 October 1949. The serial's production number was 1706.

Stunts

 * Tom Steele as Chris Calvert & Ricco Morgan (doubling Kirk Alyn & Anthony Warde)
 * Dale Van Sickel Chris Calvert, Ricco Morgan & Lt Manuel Agura (doubling Kirk Alyn, Anthony Warde and George J. Lewis)
 * David Sharpe as Lt Manuel Agura (doubling George J. Lewis)

Special effects
The special effects were created by the Lydecker brothers.

Theatrical
Radar Patrol vs. Spy King's official release date is November 23, 1949, although this is actually the date the sixth chapter was made available to film exchanges. This was followed by a re-release of Undersea Kingdom instead of a new serial. The next new serial, The Invisible Monster, followed in spring of 1950.

Chapter titles
Source:
 * 1) The Fatal Fog (20min)
 * 2) Perilous Trail (13min 20s)
 * 3) Rolling Fury (13min 20s)
 * 4) Flight of the Spy King (13min 20s)
 * 5) Trapped Underground (13min 20s)
 * 6) Wheels of Disaster (13min 20s)
 * 7) Electrocution (13min 20s)
 * 8) Death Rings the Phone (13min 20s)
 * 9) Tomb of Terror (13min 20s)
 * 10) Death Dive (13min 20s) - a re-cap chapter
 * 11) Desperate Mission (13min 20s)
 * 12) Day of Reckoning (13min 20s)