Sirens Season 2: New Episodes Set for Fall 2025 with a Jaw-Dropping Betrayal in Episode 4

Netflix’s Sirens, the dark comedy that enthralled viewers with its May 22, 2025 debut, is rumored to return for a second season in Fall 2025, despite its initial billing as a five-episode limited series. Starring Meghann Fahy as Devon DeWitt, Milly Alcock as Simone DeWitt, and Julianne Moore as the enigmatic Michaela Kell, the show—adapted from Molly Smith Metzler’s play Elemeno Pea—has dominated Netflix’s charts with 18.2 million views in its first week. While Netflix has not officially confirmed Season 2, comments from Metzler and the cast hint at more to come, with a shocking betrayal in Episode 4 poised to upend the world of Port Haven. Here’s a speculative look at what Season 2 could bring.

Season 1 Recap: A Game of Power and Deception

Set over a Labor Day weekend in the fictional New England enclave of Port Haven, Sirens Season 1 followed Devon’s attempt to free her sister Simone from the grip of billionaire Michaela Kell and her husband, Peter (Kevin Bacon). The series’ finale saw Simone betray both Michaela and Devon, aligning with Peter to become the new Mrs. Kell, while Devon returned to Buffalo to care for their ailing father. Michaela, ousted from her empire, sailed away on a ferry, her future uncertain. The show’s blend of Greek mythology-inspired manipulation, class commentary, and campy drama earned it a 77% on Rotten Tomatoes and a fervent fanbase eager for more.

Season 2 in Fall 2025: What to Expect

If Sirens returns in Fall 2025, expect Meghann Fahy, Milly Alcock, and Julianne Moore to reprise their roles, with their dynamic performances driving a new chapter of betrayal and ambition. Creator Molly Smith Metzler has teased the possibility of continuing Devon and Michaela’s story, while Milly Alcock expressed excitement for exploring Simone’s rise to power. Season 2 could pick up months after the finale, with Simone reveling in her new status as Peter’s wife, only to face threats from Michaela’s return and Devon’s lingering loyalty to her sister. The pastel-drenched aesthetic and sharp costume design—think Simone’s bold gowns and Michaela’s icy elegance—would likely return, amplifying the show’s seductive vibe.

Episode 4’s Shocking Betrayal

The rumored betrayal in Episode 4 could center on a new character or a surprising shift among the core trio. Imagine a scenario where Devon, having rebuilt her life in Buffalo, returns to Port Haven after receiving a cryptic message from Michaela. Believing she’s there to support Simone, Devon might uncover a secret alliance between Simone and a new figure—perhaps a lawyer or relative of Peter’s seeking to seize the Kell fortune. This betrayal could see Simone double-crossing Devon yet again, revealing she’s been manipulating both her sister and Michaela to secure her position. Alternatively, Michaela could orchestrate the betrayal, using Devon’s trust to undermine Simone’s marriage, only to reveal her own ulterior motives. This twist would shock viewers, as Devon’s faith in her sister—or in Michaela’s vulnerability—would be shattered, echoing Season 1’s theme of “letting go of what doesn’t serve you.”

Why It Matters

This betrayal would elevate Sirens’ exploration of power and loyalty, pushing Devon to confront her role as the family caretaker and Simone to grapple with her ruthless ambition. Michaela’s return as a vengeful force would add layers of intrigue, with Julianne Moore’s “reptilian calculation” stealing the show. Fans on X have speculated about a darker, more psychological Season 2, and a mid-season betrayal would deliver the “unexpected twist” they crave.

Looking Ahead

While Netflix remains tight-lipped, the buzz around Sirens—bolstered by its chart-topping success and all-star cast—suggests a Fall 2025 return is plausible. Episode 4’s betrayal could redefine the series, cementing its status as a must-watch drama. Until then, fans can rewatch Season 1 on Netflix and brace for the next chapter of Port Haven’s treacherous saga.