Like so many of the Roy Rogers films, this one was trimmed to fit television time slots in the 1950s. Most of these films had about 8-10 minutes shaved off. However, "Hands Across the Border" was more heavily edited--with 20 minutes deleted. It also has a lousy print--very dark in some parts, very faded in others. My review is for this expurgated version. It's very possible the full-length version is better...or not.
Roy seems to have the magical ability to read people and animals in this outing. When he meets up with Guinn Williams' character, he's on the run from the law and threatens to shoot Roy--but Roy knows he's not a bad guy and comes to his aid. The same with Trigger. This horse reportedly killed its owner--but Roy just seems to magically know the horse is a winner and sets out to prove it to everyone.
In addition to the plot involving a competition in which Roy and Trigger compete, there is STILL a lot of singing and dancing in this one. I assume the full version had more...which is hard to believe! For instance, the last 12 minutes all is taken up by a singing, dancing pageant--and the plot itself is resolved only 40 minutes into the film! This makes for a very, very slow final portion of the movie. All in all, this film was so heavily hacked to pieces, it's hard to love.