This week on Days of Our Lives, John goes back to his old ways when he saves Marlena.

"John checks her vitals, sees the syringes and notices the puncture in Marlena's neck. He knows whatever has befallen Marlena is exactly what she did to Stefano," actor Drake Hogestyn (pictured) told Soap Opera Digest.

And then what? You'll need to tune in and find out!

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