The battle between Al and Number 66 is interrupted by the appearance of Scar. As the three square off, Number 66 triggers an explosion that causes yet more trouble for everyone involved. Meanwhile, Ed and Number 48 have reached the deepest parts of the Fifth Laboratory. Now, Ed faces a bigger threat as his morality is challenged by someone from his past; will he give in to the temptation of the power he has been seeking, or will he hold true to his beliefs?
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