Bill and Ted's Nail World boss, Mr. Keilson, accidentally uses their time tra...
Bill & Ted's Excellent Adventures
Season 1 Episode 6: Deja Vu
In order to make their disillusioned music appreciation teacher feel better, Bill and Ted go back in time to 1969 when she and Ted's army father, who turns out to have been a hippie at the time, were on their way to Woodstock.