Overview
On a cattle drive Hoppy, camp cook Windy, companion Lucky, and young Artie Peters encounter an eccentric professor. The professor professes to be searching for the evolutionary missing link, but in reality he is a cattle rustler who uses his dynamite to scatter the cattle in order capture some of them. Hoppy and Bar 20 guys ultimately capture the professor.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 42 | September 12, 1972 (77) | |
 | 52 | February 9, 1969 (83) | |
 | 25 | June 9, 1981 (68) | |
 | 31 | October 16, 1948 (43) | |
 | 34 | November 3, 1975 (72) | |
 | 30 | February 16, 1995 (87) | |
 | - | - | |
 | 57 | February 7, 1961 (81) | |
 | 44 | August 21, 1982 (89) | |
 | 52 | November 26, 1947 (62) |