Marty steps inside the house to find his pushover father, George, being bullied by his supervisor, Biff… who is apparently the one who banged up the car. Spilled some of the beer he was drinking in the wreck, too. Classy.
Apparently, Biff is also having George write work reports for him, then handing them in as his own.
Marty's mostly concerned about the demolished vehicle though. So much for that weekend trip to the lake he'd been planning to take with Jennifer.