Michael races to find Whistler before Mahone; Lincoln runs into an old friend and makes a new one; T-Bag slithers his way into Lechero's graces; the prisoners threaten a revolt due to a lack of water.
Pam Hupp is Betsy Faria's close friend and the last person to see her alive after dropping Betsy off at home on the night of her murder. Betsy's husband, Russ Faria, makes a distraught call.
Pam gets her 15 minutes of fame when DA Leah Askey calls her to the stand as a witness for the prosecution, even as Joel Schwartz tries to poke holes in the case against Russ.