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Walkingalongwithhisbulldog,Charliefindsa"goodluck"horseshoejustashepassesatrainingcampadvertisingforaboxingpartner"whocantakeabeating."Afterwatchingotherslose,Charlieputsthehorseshoeinhisgloveandwins.ThetrainerpreparesCharlietofighttheworldchampion.AgamblerwantsCharlietothrowthefight.Heandthetrainer’sdaughterfallinlove.