The Walking Dead2010

[first lines]

[Deanna walks along on top of the fence wall as she listens down at Michonne talking to Maggie]

Michonne:
The town was overrun. He split off with Nicholas. He had this idea that... if he lit a fire, it would stop the walkers from coming here. I tried to go instead. I wanted to. The fire never got lit. We had to keep going. I'm sorry. He said if he got stuck, he would find a way to send a signal.

Maggie Greene:
A signal?

Rick Grimes:
[Deanna hears a scream in the distance come from outside the gate] Open the gate!

Rick Grimes:
[Deanna see's a herd of walkers following Rick right to the community] Open the gate!