Very Easy>>> gotoAndPlay

i am having trouble with my gotoAndPlay in my MC.
i have An MC1 on main stage then inside it i have another MC2. Now on my MC1 i want wen it comes to frame 15 to go and play starting frame2 on MC2
so in MC1 frame 15 i put

But nothing happens.Oh yea MC1 has stop on the first frame. But i dont see why it wont work. Help appreciated. Thanks.