Potential spoiler for people who hasn 't seen The Flash Season 2 finale!
In the Season 2 finale, the team (almost all the team) have a plan to beat Zoom, which basically consists in sending him back to Earth 2.
But what's exactly the point of sending him back to Earth 2, knowing that he is able to open breaches between worlds? Therefore he can go back to Earth 1 whenever he wants
and he did so a few minutes later!
Is it just the silliest plan ever?