S01E782: The Scarlet Return

Amuro visits Okiya at his home and begins explaining how one corpse was swapped out for another. The suspected corpse, Shuichi Akai, was shot in the head and burned along with his car at Raiha Pass. However, Amuro believes Akai switched his own body out for Kusuda's and is in fact still alive. Amuro explains Akai's trick step by step to Okiya. Meanwhile, Jodie was thinking the same thing as Amuro. Amuro reasons the body swap was planned not by Akai but by Conan. Amuro then asks Okiya to remove his mask. He is certain Okiya is Akai, but..