Kellerman and Hale blackmail Warden Pope. Michael finds out he might get out earlier than anticipated. Veronica becomes uncertain of her allies.

The escapees and Dr. Tancredi are shocked when they learn the identity of Michael's visitor, who brings with her a very important piece of the escape plan.

Flashbacks shed light on the past actions that led to the incarceration of Lincoln, Sucre, T-Bag and C-Note. Basis of Michael's ingenious break-out plan are revealed. Dr. Tancredi memorizes how she ended up in Fox River State Penitentiary.

Michael must get the key to the infirmary and enlist the help of an old face, while Lincoln learns the identity of his kidnapper and another inmate learns of the escape.

Westmoreland wants Michael to speed up the planned escape, and gets Bellick one step closer to unraveling it. Michael has to decide whether to involve Sara in the breakout plan. Tweener's devotion is put to a test. Veronica finds out that her ally unexpectedly has a connection to an inmate serving time at Fox River.

Michael and a wounded Lincoln try to outmaneuver Mahone, who is hot on their trail. Sara gets a surprise visit to her bedside.Following his suspension, Bellick recruits a resolute partner to aid in his quest to get the escapees behind the bars.Sucre and C-Note head out for their family reunions-regardless of being observed by the authorities.

In his efforts to try to get hold of all of the money Sucre runs into some unexpected difficulties. And Captain Bellick and his partner have not given up on finding their old inmates.

Bellick is anything but happy about his sudden homecoming-to Fox River.Elsewhere, Michael and Lincoln might face a homecoming of their own. Mahone and Kellerman use everything they got to make certain that Michael and Lincoln do not get through their road trip alive.Sucre's getaway plane encounters some difficulties. T-Bag closes on Mrs. Hollander.

In Mexico, Sucre gets a car but gets in trouble by the police. Bellick has more trouble as the new inmate as prisoners who suffered with him want revenge.

Sara sacrifices herself for the safety of Michael so the brothers can get on with their final plan to attain freedom, but their plan gets 'shipwrecked'. Meanwhile, Bellick blackmails Sucre to partner up as T-Bag's streak of murder continues to the south of the border.

Whistler tells the truth to Michael. Michael tries to get in touch with Sara but the only phone is in Lechero's quarters, so he has to rely on T-Bag's help. Mahone battles his addiction. Bellick steps on some toes.

Everything goes wrong for Michael as he tries to create a diversion.

Lincoln tries to outsmart Susan who has his son. Sucre offers his assistance to Lincoln.

Michael's escape may be in jeopardy because of heavy rain. T-Bag and Lechero join forces, while Bellick hopes to do the same with Mahone.

"Breaking & Entering" is the 59th episode of the American television series Prison Break and was shown together with the first episode of its fourth season as a two-hour episode with "Scylla". It was broadcast on September 1, 2008 in the United States on the Fox Network.

Michael gets medical attention from the most unlikely of places, and Charles Westmoreland returns to help uncover the true meaning of Scylla. Meanwhile, Lincoln and Sucre race to stop Gretchen before Scylla is lost forever.

Familiar faces return to help Michael end his quest to bring down The Company once and for all.