Un anniversaire haut en couleur
It's Leo's birthday and Sabrina is determined to celebrate in style! While preparing for the surprise party, Sabrina realizes that she can't blow up the balloons to be sculpted. Leo surprises her when the loft decorating is not finished. Although Sabrina is disappointed that she didn't finish in time, she is thrilled when Leo enlists the help of the geniuses. The geniuses offer to build an automatic balloon pump and a bubble machine for the celebration.