The Tracker fandom is officially divided, thrilled, and losing their minds over the biggest romantic curveball yet: Colter Shaw (Justin Hartley) appears poised to fully commit to Billie Matalon (Sofia Pernas) in Season 4—a choice that’s sending shockwaves through fans who’ve long shipped him with lawyer Reenie Greene (Fiona Rene). With the series renewed for Season 4 (set to premiere fall 2026 on CBS), recent episodes and insider teases suggest Colter is finally letting someone in—and it’s the one woman from his past who once betrayed him, but now stands by him when no one else can.
Billie, the rival rewardist played by Hartley’s real-life wife Sofia Pernas, has been a recurring spark since her debut in Season 1. Their history is messy: old flames, professional rivals, a betrayal that drove them apart, and undeniable chemistry that keeps pulling them back. Season 2 turned up the heat with a charged kiss after a high-stakes prison mission, leaving fans speculating about a full-blown romance. But it was Season 3 that truly shifted gears. In the midseason premiere (Episode 10, “The Fallout,” airing March 1, 2026), Colter—framed for murder, shot, and on the run after a fiery crash—called in Billie as his lifeline. She hid him, led authorities on a wild chase, got arrested (briefly), and risked everything to help him escape and clear his name. Their post-rescue dinner invite felt like the start of something real.
Justin Hartley himself has been fueling the fire. In recent interviews, he described Billie as someone Colter “really cares about,” someone who “puts herself in harm’s way” for him despite their sordid past. He teased that they share a deep connection—wondering “what if” things had worked out differently—and emphasized how Billie is “really there” for Colter in ways others aren’t. Showrunner Elwood Reid has echoed this, hinting at Billie’s evolution into a trusted ally Colter can rely on amid his escalating family chaos and moral gray zones. With Colter’s world crumbling (fugitive status, lingering trauma over his father’s death, strained alliances), Billie’s unwavering support in his darkest hour makes her the unexpected anchor.
Fans are split like never before. On Reddit’s r/TrackerTV and CBS fan groups, some celebrate the pairing: “The chemistry is off the charts—Billie gets him in a way no one else does,” one user posted. Others mourn the slow-burn potential with Reenie, whose banter and history (including hints of a past hookup where Colter may have messed up) have kept “Colter + Reenie” alive as the dream ship. Comments like “Please put Colter with Reenie” and “Billie feels forced because of real-life marriage” flood discussions. Fiona Rene has playfully weighed in too, telling outlets she believes Colter has “unconditional love” for Reenie deep down, but the show’s direction seems to be steering elsewhere.
This “choice” fits Tracker’s evolving tone. Colter’s lone-wolf life has always prioritized cases over connections, but Season 3‘s peril—cut off from Reenie, Randy, and even Russell (Jensen Ackles)—forced him to lean on Billie. Their dynamic blends action, trust-building, and emotional vulnerability: she understands the isolation of the rewardist world, shares his skills, and doesn’t demand he change. Hartley’s comments about Season 4 being “bigger, badder, and more emotional” suggest this relationship could become central—perhaps testing Colter’s ability to commit amid bigger threats, family reckonings, and personal jeopardy.
Of course, nothing’s set in stone. Reenie could still re-enter the picture (her chemistry with Colter remains electric), or the show could keep things complicated—Billie as partner in crime (and life) without full “happily ever after.” But the fan frenzy is real: polls on social media show the Billie ship gaining ground, with many calling it “the mature, realistic choice” for a man who’s spent years running from attachments.
As Season 3 races toward its finale and Season 4 production gears up, Colter’s decision to choose Billie could redefine the series. No more teasing—it’s time for the rewardist to stop tracking alone. Whether fans love it or hate it, this unexpected romance is about to hit the road hard.
Fall 2026: Colter Shaw isn’t just surviving anymore—he might finally be living.