Cassidy of Bar 20 - Hopalong and his sidekick Lucky find themselves facing trumped-up charges and wind up assigned to the ranch of chief malefactor Allison to work off the sentence. A hair-raising jailbreak and an exciting gun duel ensue during Hoppy's attempt to bring Allison to justice. "Partners of the Plains" - Jealousy rears its green head when ranch foreman Hoppy becomes the target of the boyfriend of the English girl who owns the property. In cahoots with one of Hoppy's old enemies, the English villain lures Hoppy to the path of a blown-up dam, followed by a raging prairie fire!
