The arrest is the latest evidence the feds' investigation into the Methbot scam is ongoing.

The men are two of the three who were extradited to the U.S. within the last year.

And now we know the group called itself "Metan," the Russian word for methane.

Maybe the only thing more complicated than the Methbot advertising fraud scheme was the plan that ultimately shut it all down.

In a letter, Alexander Zhukov said he felt "helpless and alone" against the U.S. government's case.

Sergey Ovsyannikov's court appearance will mark the third time an accused 3ve/Methbot group member will be extradited and enter a not guilty plea.