After failing to deliver a kidnapped KGB defector to their Soviet handlers, a married couple of Russian sleeper agents must find a way to keep their captive secret from their Americanised kids, the suspicious FBI agent next door, and the American government that wants their asset back.

So what's the logline for the inciting incident as the FBI agent moving in?

I view the FBI agent moving in as similar to Walter White's brother-in-law in "Breaking Bad" working for the DEA . It creates an ironic complication to be developed and paid off by the end of the series. Paid off: It's a Chekhov gun plot gimmick that eventually will have to be fired -- the FBI agent will eventually discover the truth as will Hank. And then...

The children constitute another complication and Chekhov gun plant. Later or sooner, at least one of them is going to figure out what their parents really do. And then...

Thank you. There's much for me to consider here. Cheers.

As dpg says, the logline does the job for the episode. But I think it's more than 'adequate'; it kicks ass!

Where typically loglines are not an adequate tool to capture the appeal of a TV show, this one works really well for me.

I do believe that the arrival of the FBI agent across the street is the inciting incident for the show, and it provides a strong dramatic hook.