New arrivals Jordan and Nic have integrated themselves into the group, however Tasha has shown signs of sleep deprivation and feeling unwell. Jackie questions the Zombies shrieks and movements whilst Aston admits he would have sex with the Zombie known as "The Bride". Attention turns to an eaten can of kidney beans to which Jackie believes that Tasha could be from another group of Survivors and that she has joined them to sabotage their efforts of rescue, Tasha meanwhile complains of nausea to the Communications Room with the rest of the group theorise about her true intentions and why she did not have her bag with her. The Army pick up an unusual signal and scan the area for antibiotics to no avail, however they find a food and water source near the disused caravan where Tasha had been previously and sent Nic, Amena and Tasha though before leaving, Jackie warned Amena to not trust Tasha.

As the three approach the caravan, the Army potentially discover a 5G signal but instead of aborting the mission they continue on. Nic searches for an exit whilst Amena looks for the food and Tasha grabs her rucksack, though the effects of the 5G cause her symptoms to worsen, turning her into a Zombie and attacking Nic and Amena though she fails to kill them - the Army restrict movement in the area as Tasha is now barricaded around the caravan. The pair return to base with Jackie feeling guilty about judging Tasha so early, but happy that her instincts were right and assume that any indications of flu-like symptoms could lead to a Zombie infection. The Army instruct the group to complete the balance test. Later on, Jonas creates a space for exercising which the group noting how strong he truly is.

On their daily water collection, Jonas and Jordan are instructed to reroute the water mains as the supply has run dry. At the water mains supply, Jordan directs Jonas via a headset as he navigates a dark room to turn on the water however a loud hiss when activating the mains alerts the Zombies and as he is about to leave the room, Jonas is caught. Jordan returns on his own with the group upset at Jonas' death but shortly after all the Survivors are sent out as a group to collect fresh food from the Garden Centre. During their mission, a group of recently infected Zombies approach with the Survivors all climbing into an abandoned vehicle. The Army deduce that the Zombies are still able to run and instead order the Survivors to return to base individually with Sara going first but she is caught and killed, her death gives the others the distraction needed to return to base. Jackie, however is trapped within the car. After a while, she manages to make it back to base unharmed, but not before being chased by a group of ravenous zombies. The group compare the deaths of Jonas and Sara as Sara's death was treated as light-hearted due to her apparent "zombie suicide" with Amena and Jackie contemplating whether or not their last mission was every man for themselves. The episode closes on the group toasting to Jonas and Sara.