AS2 Nested Child MC gotoAndPlay Another Child Movie Clip

How do I gotoAndPlay a frame number of a child MC from another child MC?

I have a movieclip that has 4 nested child mo开发者_运维知识库vieclips. mcA - mcB - mcC - mcD Inside mcC at the end of the movie clip I am trying to gotoAndPlay a specific frame inside mcB.

I have tried:

MovieClip(_root).mcB.gotoAndPlay(181);

and

mcB.gotoAndPlay(181);

but with no luck.

Any help is appreciated. Thanks in advance!

If I understand coorectly, and mcC is a child of mcB, then all you need on the last frame of mcC is:

_parent.gotoAndPlay(181);