And once again, this episode has one of those (in)famous The West Wing "start a story but never finish it" scenarios. In this case, we never find out what Donna said when asked whether she loves Josh.

John Spencer ought to win an award for a few seconds of acting in this episode: the look on his face as he broke into a run at the end after Ron told him that Zoey was missing was enough to drive me to tears.

Synopsis for this episode:

As Zoe prepares to head off to France for three months, the President prepares to speak at her graduation, whilst Josh and Charlie try and rekindle things between the President's youngest and his personal assistant. Leo and and CJ also have to deal with Danny's digging into the Shariff murder.
Meanwhile Toby tries to win back his very pregnant ex-wife and Donna and Amy get deep and meaningful.
But when things seemed settled, the fates deal another crushing blow to the President....