Anthropomorphic dog prisoners resort to all means possible to attempt a prison breakout. When the dogs make a break for it, the canine cops are on their heels. The prisoners are really in the doghouse with the warden when they attempt to escape from "Alcarazz," where "stone walls do not a prison make... but they sure help!"
a.a.p. hacked off the original card, hence early TV airings of the cartoon don't have the WB shield), and the LaserDisc release replaced the hacked a.a.p. opening with "Gold Rush Daze"'s opening Color Rings. One can tell that the 1939 opening rings are from another source due to the un-matching color correction of the 1939 opening rings and the closing rings, as well as the blanked-out MCMXXXVIII Roman numerals in the copyright notice.
The American Turner dubbed version is available as a special feature of the Invisible StripesDVD, with "Hare-um Scare-um", also a Turner dubbed version, without the lost ending, since the DVD came out prior to 2012.
The original opening and production code were restored for the Turner "dubbed version". However, the original ending is cut and replaced with the 1938 Leon Schlesinger "dubbed" card in the "dubbed version", at least in the American dubbed version.