Beware the Jabberwock, My Son - S4-E5
Plot hole: In the barn scene, Butcher and the team escape attacking V'd-up sheep using a corpse injected with the virus as bait. Afterward, Sameer is missing, and only his leg is found. Later, it's revealed that Kessler, who supposedly abducted Sameer, isn't real; he's a hallucination caused by Butcher's tumor. This means Butcher somehow kidnapped Sameer, amputated his leg, and hid him during the chaos without anyone noticing. How did he get Sameer away, unheard and unseen, and then make it back?
Suggested correction: This is in the form of a question, not an actual plot hole. Butcher's abuse of V and the brain tumor gave him superpowers; besides tentacles, it's possible he possesses more. He was able to do all that using his superpowers.
No, asking the question at the end is framing it to make you think; it doesn't take away that this is submitted as a plot hole. And while I understand what you're saying, it still wouldn't really account for him being able to sneak away with Sameer, cut off his leg without anybody seeing or hearing, hide the leg and stash Sameer somewhere, and then make it back in just seconds unless he had speed like A-Train. A serious retcon or shoehorn will have to be put in season 5 to account for this.
Plot hole: In Russia, Soldier Boy is shown heading to the airport, He wanted to get to the US and start his revenge against his team. Problem is: he has no documentation and money to take a flight. Even if he stole the money somewhere, still would be impossible to travel without the proper documents.
Plot hole: Starlight, Kimiko, and Hughie are torturing Tek Knight by transferring millions of dollars to organizations he hates. Even though it's needed to move the plot forward, there is no way they could have known the routing and account numbers for those organizations.
Suggested correction: Both Starlight and Hughie are probably familiar with a lot of organizations that accept donations and gifts through their former jobs as political representatives. Why wouldn't they know the numbers?
Respectfully, that's a big leap. They were political representatives, not members of a trust or charitable foundation. Why would they have memorized the bank account numbers of random organizations? Not to mention the fact that at no time do Starlight or Hughie provide the account numbers to Kimiko. She just starts typing and bam, the money is transferred.
