Cock Cannon

A long time ago in a fairytale kingdom, there lived a king who threw a grand banquet to celebrate the birth of his heir. People from all across the kingdom were invited to take part -- except one. Witches don't take too kindly to being scorned, and so the vengeful spellcaster decided to curse the newborn prince.
"On the day of your 18th birthday, you'll have an accident with your zipper... and thus your family line will die with you!"
Now that time has come, the prince sets off to secure his lineage by hunting down the witch who cursed him.