This short seems to have only been created to help advertise the music that was created and that basically had a whole music video for in the first 5 minutes. The plot of the short is basically team rocket has built a secret base and are about to show it off to the boss and they leave their pokemon to guard the base and to prepare a dance number to impress the boss.

They will do this by using a magic stick Meowth has that makes all pokemon in the area dance, along with a few pokemon they have trapped.

Of course Pikachu and his friends discover the trapped pokemon and sneak in to free them, soon they are caught but the magic stick accidentally gets activated and they do a dance number to a rhythmic song (that is played EVERY time they dance) during the dancing parts of the base is damaged until the stick accidentally gets turned off, now a chase segment happens until yet again the stick is hit and they do another dance number, parts of the base gets damaged until it's accidentally turned off

This pattern keeps repeating for the rest of the 25 minutes of the short. Sure some bits are funny, but it's basically just watching pokemon dancing until eventually the base is destroyed. The end.