The first trailer for Season 4 of Prime Video very R-rated superhero show released on Saturday. The last time we saw “The Boys,” they were dealing with the fallout from their battle with Homelander (Antony Starr) and Soldier Boy (Jensen Ackles). Victoria Neuman (Claudia Doumit), who secretly has blood-bending, brain-exploding powers, is also on the campaign trail and in line …