Episode 9 of *Invasion* unfolds in the high-stakes confines of the WDC's war room, where President Benya is urgently briefed on the escalating seismic activity. As the tension mounts, we witness a global phenomenon unfolding—earthquakes striking various locales simultaneously. Amidst this chaos, Nikhil descends into the pit with the alien, only to uncover a chilling revelation: all the areas flagged on the radar are, in fact, devoid of alien presence. This ominous discovery hints at a far more sinister scenario—the aliens could be lurking anywhere, their exact locations obscured by advanced cloaking technology.
Meanwhile, Mitsuki has been tirelessly working day and night, relentlessly pursuing the elusive signal of the alien ship. Following the destruction of the portal, her task has become even more daunting. Despite her exhaustion, Mitsuki seems to share an inexplicable bond with the alien entity. As she hears Hinata's voice calling out to her, Mitsuki follows the ethereal sound outside. Gazing upward, she witnesses a flock of birds soaring in an infinite pattern. Suddenly, the ground beneath her feet begins to glow, transporting Mitsuki's mind back to the moment she saw Caspar's desperate plea for help. In a flash of insight, she realizes, "Finding him is the key."
Elsewhere, Caspar is once again rendered unconscious by Esmee and Gabrielle, who are eager to continue their unorthodox experiments. This time, when Caspar awakens, he's in a frantic state, recounting a vision of a "bright light" that the aliens fiercely guarded. The WDC, increasingly desperate for answers, turns its attention back to Aneesha's subplot. Her interaction with Clark hints at a burgeoning attraction between the two. Meanwhile, Sarah is subjected to military tests at the Idabel Project, though the intentions behind these tests are far from malevolent. The military seeks to glean more information about the alien shard that was previously tracked.
Caspar and the special children converge, recalling how they heard "the other"—Mitsuki—and how locating her could provide another vital clue. But the stakes are high; what if Caspar slips into a coma again? Jamila steps forward, proposing to accompany Caspar to keep him anchored to reality. Monty vehemently objects, but Caspar, in a moment of vulnerability, confesses his secret crush on Jamila.
Clark and the other members of the Movement devise a daring plan to infiltrate the Idabel Project, using the remaining soldiers from another camp as decoys. In a poignant exchange, Caspar apologizes to Monty, acknowledging the group's sacrifices and his own lack of reciprocation. Monty pleads with him not to involve Jamila, and for a moment, Caspar seems to relent.
The Movement members fan out across the field, creating diversions with guns and explosions to flush out the soldiers from the base. Aneesha and Clark break into the facility, where they encounter Rosy and Trev, who are being held captive. Trev recognizes Sarah and pledges his help to Aneesha in locating her. As chaos erupts outside, a soldier spots Trev and opens fire. He urges Aneesha to hand him a gun, but she hesitates. He manages to hold off the attackers long enough for Aneesha to find Sarah.
When Caspar confronts Jamila about accompanying him, she reveals her inner turmoil—how she keeps choosing to stay by his side, even unconsciously. But there's a change in him that frightens her. In the end, it's decided that Caspar will go alone. Tension continues to build around the Amazon project as Mitsuki delves deeper into the forest, chasing the elusive, glowing light.
It's as though the very ship itself has been resurrected, pulsating with a life of its own and seemingly responding to Mitsuki's every footstep. As she ventures deeper into its bowels, Mitsuki discovers to her horror that the aliens have woven their insidious network throughout every nook and cranny. Spotting two luminous chords rising from the ground, she instinctively reaches out and touches them—only to find herself instantly transported into the very heart of the alien realm.
To her utter astonishment, Mitsuki spots Caspar amidst this surreal landscape. Their eyes meet, and a flicker of recognition passes between them, harkening back to the moment when Mitsuki had played "Space Cadet" within the confines of the mysterious box that had served as a portal. Piece by piece, they begin to piece together the puzzle: this place, they deduce, must be the nexus where the aliens converge, for they operate as a singular, hive-like entity—all but one.
Suddenly, both Mitsuki and Caspar are jolted awake in their respective locations, gasping for breath as if they've just emerged from a harrowing dream. But the truth hits them hard: they now possess the knowledge of where every portal leads—straight to the mother ship, the very heart of the alien menace.
The episode concludes on a chilling note, as a colossal vessel, presumably the hive itself, begins to slowly uncloak, revealing its ominous presence against the backdrop of the sky—a harbinger of the looming threat that awaits.