Good Luck Charlie: Dancing Singing Duncan

Amy makes the family to take part of the competition so that she can beat her enemies, Fran. Turn out that non of them can dance, so Amy hires professional dancers to replace the members of the family except for Charlie. Meanwhile, Teddy's classmate Lynette doesn't invite her to her party but she invites Ivy. Later, she finds out that Ivy has been making up excuses to go somewhere else and Teddy thinks that Ivy attended the party without her. Gabe and PJ sell "old junk" on the internet to raise money.