Dunc's Undercover Christmas

It's Christmastime! And Dunc, Amos, and Amos's cousin, T.J., hit the mall for some serious shopping. But when the seasonal magic is threatened by some disappearing presents and Santa Claus himself is a prime suspect, the boys put their celebration on hold and go undercover in the perfect Christmas disguises. Can the sleuthing trio protect Santa's threatened reputation and catch the impostor before he strikes again?