Audio and Video out of sync

Hi again

Well I did something and all my audio got out of sync with the video. What happened was the audio on my fist clip got extended. so all the audio moved to the right and now is out of sync.

I searched the manual and various videos but I can't seem to find a way to get that audio back. I enabled the trim edit, unlocked the video/audio tracks but now I can't ripple;e move everything back to match the video clips.

Can anyone help me?

Thanks
Allen