S01E12: One is All, All is One
While visiting Izumi, their childhood teacher, the Elrics recall the early difficulties of grasping equivalent exchange. They also discover she shares their intimate knowledge of alchemy's greatest taboo.
Previous Episode 
Season 1
Fullmetal Alchemist
S1E1 / 05 Apr 2009
The First Day
S1E2 / 12 Apr 2009
City of Heresy
S1E3 / 19 Apr 2009
An Alchemist's Anguish
S1E4 / 25 Apr 2009
Rain of Sorrows
S1E5 / 03 May 2009
Road of Hope
S1E6 / 10 May 2009
Hidden Truths
S1E7 / 17 May 2009
The Fifth Laboratory
S1E8 / 24 May 2009
Created Feelings
S1E9 / 31 May 2009
Separate Destinations
S1E10 / 07 Jun 2009
Miracle at Rush Valley
S1E11 / 14 Jun 2009
One is All, All is One
S1E12 / 21 Jun 2009
Beasts of Dublith
S1E13 / 28 Jun 2009
Those Who Lurk Underground
S1E14 / 05 Jul 2009
Envoy from the East
S1E15 / 12 Jul 2009
Footsteps of a Comrade-in-Arms
S1E16 / 19 Jul 2009
Cold Flame
S1E17 / 26 Jul 2009
The Arrogant Palm of a Small Human
S1E18 / 02 Aug 2009
Death of the Undying
S1E19 / 09 Aug 2009
Father Before the Grave
S1E20 / 16 Aug 2009
Advance of the Fool
S1E21 / 30 Aug 2009
Backs in the Distance
S1E22 / 06 Sep 2009
Girl on the Battlefield
S1E23 / 13 Sep 2009
Inside the Belly
S1E24 / 20 Sep 2009
Doorway of Darkness
S1E25 / 27 Sep 2009
Reunion
S1E26 / 04 Oct 2009
Interlude Party
S1E27 / 11 Oct 2009
Father
S1E28 / 18 Oct 2009
Struggle of the Fool
S1E29 / 25 Oct 2009
The Ishvalan War of Extermination
S1E30 / 01 Nov 2009
The 520 Cens Promise
S1E31 / 08 Nov 2009
The Führer's Son
S1E32 / 15 Nov 2009
The Northern Wall of Briggs
S1E33 / 22 Nov 2009
Ice Queen
S1E34 / 29 Nov 2009
The Shape of This Country
S1E35 / 06 Dec 2009
Family Portrait
S1E36 / 13 Dec 2009
The First Homunculus
S1E37 / 20 Dec 2009
Conflict at Baschool
S1E38 / 27 Dec 2009
Daydream
S1E39 / 10 Jan 2010
Homunculus (The Dwarf in the Flask)
S1E40 / 17 Jan 2010
The Abyss
S1E41 / 24 Jan 2010
Signs of a Counteroffensive
S1E42 / 31 Jan 2010
Bite of the Ant
S1E43 / 07 Feb 2010
Revving at Full Throttle
S1E44 / 14 Feb 2010
The Promised Day
S1E45 / 21 Feb 2010
Looming Shadows
S1E46 / 28 Feb 2010
Emissary of Darkness
S1E47 / 07 Mar 2010
The Oath in the Tunnel
S1E48 / 14 Mar 2010
Filial Affection
S1E49 / 21 Mar 2010
Upheaval in Central
S1E50 / 28 Mar 2010
The Immortal Legion
S1E51 / 04 Apr 2010
Combined Strength
S1E52 / 11 Apr 2010
Flame of Vengeance
S1E53 / 18 Apr 2010
Beyond the Inferno
S1E54 / 25 Apr 2010
The Adults' Way of Life
S1E55 / 02 May 2010
The Return of the Führer
S1E56 / 09 May 2010
Eternal Leave
S1E57 / 16 May 2010
Sacrifices
S1E58 / 23 May 2010
Lost Light
S1E59 / 30 May 2010
Eye of Heaven, Gateway of Earth
S1E60 / 06 Jun 2010
He Who Would Swallow God
S1E61 / 13 Jun 2010
A Fierce Counterattack
S1E62 / 20 Jun 2010
The Other Side of the Gateway
S1E63 / 27 Jun 2010
Journey's End
S1E64 / 04 Jul 2010
Romi Park
Edward Elric (voice)
Rie Kugimiya
Alphonse Elric (voice)
Shin-ichiro Miki
Roy Mustang (voice)
Fumiko Orikasa
Riza Hawkeye (voice)
