Ep 6. Invasion Earth Episode 6

Tucker realizes that Preston's toxin has not worked and that the process she is undergoing will continue. Afterwards, she, Drake and the rest of the team are pulled from the investigative area to launch a futile attack per Bentley's request. After the attack proves unsuccessful, Nick offers to return because he has picked up some unfamiliar readings he believes is nD communication. Then Tucker and Drake deduce that objects entering the vicinity of the phenomenon leave a transmitting channel behind for communication. Later, Knox embarks on a mission that proves dangerous but helpful to the fight. Preston discovers the importance of living matter to the nDs and works with Tucker and Drake to destroy the surface - and perhaps Tucker as well.