Complex sentence: Upon confronting Tracy, the Croppers are stunned when (attempting to extort money), Tracy says that she is pregnant with Roy's baby and plans to have a termination if the Croppers don't want to adopt it.
Split into simpler sentences: Upon confronting Tracy, the Croppers are stunned when (attempting to extort money), Tracy says that she is pregnant with Roy's baby. She then reveals plans to have an abortion if the Croppers don't want to adopt it.