Summary With loved ones beside him, Gus goes on a treacherous journey into the cave to find a cure once and for all. Meanwhile, chaos breaks out at the outpost. Our Take Confident and engaging. The plot moves, the stakes feel real, and the hour flies by.

Summary After a daring rescue, Gus meets an individual well-versed in hybrid history. Amid emotional reunions and eerie revelations, all roads lead to the cave. Our Take A well-built episode with more hits than misses. Worth your time.

Summary As polar night looms, Gus and his crew arrive at the outpost — but they’re not alone. To find Birdie and the cave, they must brave several obstacles. Our Take This one earns its reputation: tight writing, real stakes, and a payoff that lands. Peak Sweet Tooth.

Summary An unsettling discovery at sea forces Gus to take on a grim chore as tensions swell between his companions. On land, an enemy interrogates Becky. Our Take A masterclass episode — confident, surprising, and completely earned.

Summary As Gus learns more about a threat and their dangerous plans, the group races to catch a departing boat. Jepperd and Becky face an impossible decision. Our Take A strong episode with a couple of wobbles, but Sweet Tooth keeps its grip throughout.

Summary After a Dr. Singh joins Gus and his crew, they seek a way to the coast and stumble upon a plane owned by a family in desperate need of medical attention. Our Take A well-built episode with more hits than misses. Worth your time.

Summary Gus and his cohorts set out for Alaska to reconnect with Birdie, who’s working on a cure for the Sick. But first, they test their luck at an old casino. Our Take A well-built episode with more hits than misses. Worth your time.

Summary Warned about General Abbot’s plans, Gus and his friends prepare to take a stand and defend the hybrid kids, no matter what it takes. Our Take Solid, satisfying television. The season’s engine keeps turning and the character work pays.

Summary After an eventful, obstacle-strewn journey to find a safe haven, Gus learns more about his origins and how far Birdie was willing to go to protect him. Our Take Solid, satisfying television. The season’s engine keeps turning and the character work pays.

Summary The zoo turns into a battle zone when the rescue mission takes flight, with families coming together — and falling apart — during the chaos. Our Take A strong episode with a couple of wobbles, but Sweet Tooth keeps its grip throughout.