you were with another group but you got left by them, then Rick and Daryl found you, you were held hostage in Hershel's barn and tied up..then Rick and Daryl came in and they started talking about what they were gonna do with you, and how the group would get to decide whether to let you stay or kill you because you could go back and tell your group.

Rick: "ah d-mn, what do we do with him/her?" Daryl-talking a little fast in a concerned tone.: "I-i say we kill him/her,already killed Shane."