On this week's episode of Alcatraz...

Past:

Emerson Hauser brings Paxton Petty to Alcatraz and meets Lucy for the first time.

The warden and Lucy interrogate Paxton hoping to discover the fourth location of one of his bombs.

Lucy calls upon Tommy Madsen for help in deciphering his code and begins asking questions for why he is constantly in the infirmary.

Lucy seeks out Emerson for his help in finding the mine as well as going out on a date.

Present:

Paxton is back and using the same methods to place bombs in San Francisco.

Emerson uses his notes to help capture Paxton, but manages to get himself stuck on a landline.

Rebecca captures Paxton and Emerson tricks him into revealing where the fourth bomb is.

Emerson removes Lucy from the hospital and takes her to Dr. Beauregard, demanding he fix her.