Giganotosaurus

you and your friends in the forest in the dino era, finally found a helicopter, you all are relieved and happy, but then just as about you were about to get on it, a T-rex comes, it roars at you, you all seem very scared, but then the Giganotosaurus comes and bites it's neck, drags it to the ground and crushes it's head on a rock, killing it, it then stares at you and roars, not letting the T-rex gets it's kills, it then approaches you, what do you do