Notable Dean Winchester Episodes

Season One

Pilot- Dean goes to his younger brother, Sam's house for help.
Dead in the Water- Dean forms a bond with the traumatized kid, is able to get him to tell him what he saw, and later saves the kid from drowning.
Phantom Traveler- We learn Dean is afraid of flying.
Skin- a shapeshifter takes the form of Dean and frames him for murder.
Home- Dean must go back to his childhood home to save a mother and her kids from the same fate that had been bestoyed apon them years ago.His mother appeared and save them.
Scarecrow- Dean and same went part way. Dean is left to deal with a secretive little town and is almost sacrificed to a scarecrow.
Faith- Dean is accidently electricuted which weakens his heart giving him only a few weeks to live until they find a faith healer, but must then live with knowing that someone died for him to live by the help from Grim Reaper.
Nightmare- Dean finds out that Sam has visions... and hes not the only one.
The Benders- Dean must find Sam after he is kidnapped by a family who hunt humans.
Shadow- Dean and Sam meet up with their father, John. John then leaves again.
Something Wicked- Dean reveals to Sam that the thing they're hunting had come for him and that he almost lost Sam.
Dead Man's Blood- the family reunites once again when a group of vampires kills one of Johns friends, and fellow hunter.
Devils Trap- Dean is tortured and severely injured by the Demon. On the way to the hospital, a semi plows into the Impala leaving him and the other two Winchesers left for dead.

Season Two

In My Time Of Dying- Dean is comatose after the car accident, and his spirit is left to wonder the halls of the hospital.... and to try and stop the Reaper thats after him.
John sacrifices his sole and the Colt for Deans life.
Bloodlust- Dean fights the urge to kill a group of vampires who claim they do not kill humans.
Children Shouldnt Play With Dead Things- Dean lets his emotions out to Sam, telling him how he felt about his fathers death.
No Exit- Dean must find the ghost of H. H. Holmes (Americas first serial killer) who has Jo.
Simon Said- Dean is arrested as a suspect in a case he had been working of a death of a lawyer when he was caught at the scene of the wifes murder. Dean makes enemies with the lead detective and almost gets himself killed.
Crossroad Bues- Dean figures out what really happened at the hospital.
Croatoan- Dean tells Sam his fathers last words to him: "if you cannot save Sam, then you must kill him".
Hunted- Dean must save his brother from Gordon, who found out about the Demons plans for him.
Nightshifter- while trying to stop a shapeshifter from robbing a bank, Dean is forced to hold the bank hostage, adding another rap on his police record.
Houses of the Holy- Dean reveals the last words his mother ever spoke to him before she died and that he no longer believes in angels or any other thing he has not seen with his own eyes.
Born Under A Bad Sign- Johns last words ("if you cannot save Sam, then you must kill him")come back to Dean when it seams his dark side is finally beginning to show itself.
Folsom Prison Blues- Dean and Sam are arrested and sent to a state pennetary to fight a spirit, but there plan is delayed when FBI agent Hendrickson, who had been looking for them sinse the bank robbery, shows up.
What Is And What Should Never Be- Dean is attacked by a Djinn and sent to an alternate reality where his mother is still alive, Sam is married, and his life is normal for the first time. But outside of this memory he is only dinner.
All Hell Breaks Loose Part I- Dean must find his brother when he suddenly disappears. Later Sam is stabbed in the back by Jake.
All Hell Breaks Loose Part II- Driven to an emotional break over his brothers death, Dean seeks out the Cossroad Demon to make a deal. Sam returns and Dean is given one year to live. Finally kills the Yellow-Eyed Demon as the gates to Hell are opened and hundreds of demons swarm out.

Season Three

The Magnificent Seven- Dean and Sam must deal with the aftermath of Deans deal and the gates to Hell being opened.
The Kids Are Alright- Dean finds out he may have an eight year-old kid, Ben, and must save him and the rest of the children in town.
Black Day At Black Rock- Dean gets intoduced to Bella Tablot, Sam faces bad luck from a rabbits foot and Dean trys to save him from death.
Sin City- Dean and Sam investigate a rash of violent deaths, Dean uses a devils trap to capture a demon which manages to trap him as well then ends up reveling there motives and future plan about Sam.
Fresh Blood- Gordon escapes from prison to hunt Sam down, while Dean struggels to keep him alive.
A Very Supernatural Christmas- Dean and Sam celebrate christmas hunting down Paigan Gods, flash backs reveal how christmas was like for the Winchester brothers while they were children, and how Dean got his amulet as a present from Sam.
Dream a Little Dream Of Me- Dean and Sam try to save Bobby from bring trapped in his own mind (dreams), while Dean faces his worst fears(himself) and of going to hell and becoming a demon.
Long Distance Call- The Brothers investigate a town where people are getting phone calls from beloved dead, until Dean gets a phone call from his dad, telling him that he knows who owns his contract and how to save him.
No Rest For The Wicked- With only 30 hours before Dean's deal is up, Bobby and Sam search for Lilith who holds his deal, while Sam summons Ruby for help, they soon find out they can't help Dean, in the end he gets killed and sent to hell.

Season Four

Lazarus Rising- Four months after Dean's death, he wakes up to find himself in a pine box, after a happy reunion with Sam and Bobby, a new character is introduced Castiel an angel that dragged Dean out of hell.
In The Beginning- Castiel transports Dean back in time in Laurence Kansas, where Dean finds out why Azazel came after his family years ago.