I need a great introduction video for fundraisers campaign.

Hello folks, I have a campaign coming up and video for this campaign has been set up, but no Introduction start as call to actionfor it, also I need a video introduction that explain why viewer's need to watch the remaining 18 minutes video of a woman that help in the rescue process of abandoned babies in china. Please I will need only good video producers that knowns much about introduction and outro of a video with license music.