The Walking Dead Spoiler (Season 3, Episode 14: Prey)

After the talkies with Rick, the Governor made Andrea believe that they had a  good deal but did not say what the deal was about. Then, Milton saw him preparing a room with chains and a chair, with a handcuff and small stuffs which are used in an operation. He thought that Philip will not follow the deal. Milton tried to talk the Governor out of his evil plan, but he failed to convince him. So, he (Milton) told Andrea about it and his plan to kill all the people in the prison.

They (Milton and Andrea) went to the place where the governor was setting up the slay room, where she tried to shoot him, but, Milton stopped her.  And she then have decided to go to the prison and warn the group the regarding the Governor's plan. She even tried to convince Milton to go with her but he preferred to stay because it is there where he really belongs, he said.

Tyreese and Sasha (T & S) were on guard on the front gate when Andrea broke out of Woodberry. They tried to stop her but a knife she held stopped them. She tried to warn them of the Governor before she ran away. The two were also a bit confused of who's side will they be.

T & S told the governor about Andrea's breaking-out-of -Woodberry issue  and he immediately ran after her. In an abandoned building filled with biters, the blonde tried to hide.

The Governor got caught in a fleet of biters and luckily Andrea got out of the building.

She almost reached the prison and almost seen by Rick who was currently on guard at the post when the Philip grabbed her, covered her mouth and laid her on the grass.

He drove back to Woodberry and nobody knew he got and imprisoned Andrea.

Countdown: Last two episodes left for the season