The cast and crew of Paramount's "Hopalong Cassidy" Westerns returned once again to Lone Pine's famous Alabama Hills for this above-average entry in the long-running series. Ma Woods (Sarah Padden) is about to lose her ranch due to the machinations of the not so neighborly George Davidson (Stanley Andrews), who refuses access to the only water in the vicinity. But unbeknownst to both Ma and the always law-abiding Davidson someone else is stoking the fires of the feud for his own greedy reasons. But who? Robbed en route to Ma Woods' Colorado ranch, Hoppy (William Boyd), Lucky Jenkins (Russell Hayden) and California Carlson (Andy Clyde) manage to settle matters between Davidson and Mrs. Woods but the money to buy the Ma's cattle seems to have vanished. According to some sources In Old Colorado was co-written by co-star Russell Hayden. The Western marked the debut under that moniker of leading lady Margaret Hayes, who had previously been billed Dana Dale. ~ Hans J. Wollstein, Rovi