At the end of the season 2 episode “It's a Wonderful Lie,” Bart is apparently killed in a car crash with the private investigator, Andrew, who had the information on Lily. For the next three seasons, Bart is supposedly dead, only returning in visions to Chuck.

What episode does Bart Bass die?

The entire Upper East Side of Manhattan is rocked when Bart Bass dies suddenly in a limo accident. Serena and Eric takes the news very calmly while Lily has a troubling time despite her mother, Cece's, awkward attempts to comfort her.

Where does Bart Bass die?

We're told Bart Bass died in a car accident on the way to meet Lily, but when last we saw him, he was in the car on the way to meet Lily, with private detective Andrew Tyler.