family business

One night 14 y/o Via McKinsey, and 16. y/o Tyler McKinsey find out about hidden family that they were never aware they had. with their mother and father both dying while they were young. They think they have no more family left. they're wrong. but what if this "family" of theirs are actually undercover spies doing some not-so-good things that they just got their selves involved in?