Phantom: Requiem for the Phantom - 1 ª Season

Ein and Zwei go on a mission to assassinate a mob boss. In flashback, Zwei wakes up in a room, with no memory of who he is or how he got there. As he begins to explore, he is confronted by Ein, who has been sent by Inferno to attempt to kill him so that they can gauge his abilities. Also, Claudia decides to view this exercise because she doesn't trust Scythe Master.

Zwei awakens and finds out from Ein that he has two choices: he can either join Inferno or die. While training with Ein, Zwei learns that he must shut off his emotions, but he wonders whether he has what it takes to kill. Later, Ein goes on a mission.

Zwei's training is put to the test when he is assigned to assassinate Inferno's arms dealer, an ex Navy SEAL who has become a liability.

Ein and Zwei are assigned to kill a Dallas mob boss named Don Lucio. Together they scout out the mall where Lucio will be shopping, and they wait for the right moment to move in for the kill. Also, Zwei worries that he is merely a slave being used by Inferno, and Ein worries that, by watching Zwei, she will see what she has become.

Wanting his company, Claudia summons Zwei to her home. There, she gives him his next mission: to monitor the wife and child of Tony Stone, a principled mob boss who won't give up his territory to Inferno. While Zwei carries out his mission, Claudia meets with Stone in a final attempt to reason with him.