Lincoln vows to make Abruzzi pay, but Scofield reminds him that Abruzzi is needed. Sucre is released from solitary and Scofield tests the former's loyalty before revealing his plan. Sucre passes the test, but he decides to change his cell and stay out of trouble as he will be released soon. Abruzzi realizes that he must befriend Scofield in order to find Fibonacci. Bagwell plans to lynch Scofield. Abruzzi tries to reconcile with Scofield by having his men beat up Bagwell and thus the latter going to the solitary. Scofield tells Abruzzi about his plan and he agrees to cooperate. L.J.'s probation officer forces him to visit Lincoln and the father and son become closer after a long time. Before Barris can sign her testimony for Lincoln written by Donovan, Kellerman and his fellow agent, Hale, abduct and kill the former. Donovan decides to leave her fiance, Sebastian Balfour. Bellick brings Patoshik, a psychotic inmate, to Scofield's cell. Patoshik becomes a problem for Scofield's plan.