<P> Serena van der Woodsen (Blake Lively): Serena is very nostalgic in this episode . She looks back and realizes she hasn't found anybody better than Dan or Nate . She and Dan make up and are now friends . After the accident, Serena commits herself to taking Gossip Girl down . </P> <P> Nate Archibald (Chace Crawford): Nate is busy with his newspaper as it gets more attention . He finds out that his grandfather arranged his job for him . Also, he is now leading his family in order to maintain their leadership status . He helps Chuck and Blair escape together and witnesses their car wreck first - hand . After the accident, Nate says he will help Serena take Gossip Girl down . </P> <P> Blair Waldorf (Leighton Meester): Blair does not hide her conflicted feelings as she comes to realize that there is a possible ending with Chuck in it and not Louis . She tries to stay away from going for Chuck, but she cannot help it . At the end of the episode, her and Chuck get in a car crash due to over-active paparazzi . She survives the crash . </P> <P> Chuck Bass (Ed Westwick): After struggling to curb his feelings for Blair and to remain a changed man, Chuck commits himself to Blair and her unborn child . He goes to reveal his love for Blair and she reciprocates her feelings . They run away together but get into a car accident that leaves him in trouble . </P>

When do chuck and blair get into a car accident
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