Jake (Disventure Camp) - traitor?

(You are Tom)
Oh, Tom...Oh, Tom...How could you be so absent-minded?...How did you not notice?...
Tom is an undercover spy, but he befriended a boy named Jake at camp, they became very close then, but Tom noticed some slight strange behavior in his friend but decided not to give it much importance since he knew that Jake's grandmother had passed away and maybe that was the reason for his strange actions... Oh, how wrong he was. One night, Jake left a letter for Tom telling him to meet up and that it was urgent, he went and when he arrived, Jake was there, a sedative was thrown far away on the back of Tom's neck, starting to feel slightly weak, the sedative was not that strong, so he was still awake, he saw Jake, with an ID card that had Tom's full name and his job, the card that he had lost a few days ago...

"Were you looking for this?..." Jake asked while playing with the card a little in a mocking manner.

"How... How could you?..." Tom asked, incredulously
"Oh, Tom... You should have expected it... You can't trust anyone when it comes to your job, can you?..."