From the publisher's website:

Pick up the cards and challenge your friends and family to be the first player to complete ten phases in this exciting rummy-type card game. Phase 10 lays out varied combinations of sets and runs that you need to gather. Plan your strategy carefully so you don't get left behind as your opponents move along to the next phase! This fun card game from the makers of UNO will have you on the edge of your seat as you hope for just the right cards to be crowned the winner. Try Phase 10 from Mattel and discover a new game night favorite for your family.