Tracker Finale Trailer: Watch Justin Hartley Reunite With Jennifer Morrison (Exclusive)

Justin Hartley is reunited with an old friend during Sunday’s Tracker finale (CBS, 9/8c) — and TVLine has an exclusive first look.

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The above trailer marks the debut of Hartley’s This Is Us co-star Jennifer Morrison, who guest-stars in the dramatic conclusion to CBS’ freshman hit. The episode, titled “The Storm,” sees Colter investigate the disappearance of two amateur storm chasers — one of whom is the daughter of Morrison’s Lizzy Hawking, an old family friend — that the local police have written off as an accidental drowning. Before long, “Colter’s expert tracking skills lead him to uncover the seedy underbelly of a small town resort,” according to the official logline, and that’s where things get real intense.

Hartley previously let slip to Collider that Morrison would appear on the show in a “key role,” playing “an old family friend of [Colter’s] from way back when they were kids…. That whole family dynamic leaks out a little bit through her experience with him in the finale.”

Morrison is the latest in a series of significant castings for the CBS procedural. Not only did Hartley’s real-life wife Sofia Pernas guest-star as a fellow rewardist earlier this season, but the show recently welcomed Melissa Roxburgh ( Manifest ) as Colter’s sister Dory , and Jensen Ackles ( Supernatural ) as Colter’s estranged brother Russell . (Both Roxburgh and Ackles are expected to be back, though neither will appear in the May 19 finale.)

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The House and Once Upon a Time vet joined This Is Us in Season 4 as Cassidy Sharp, a Marine recently returned from duty whose rough reentry into normal life tore her family apart. She eventually befriended Hartley’s Kevin Pearson, and remained a fixture on the NBC drama through its sixth and final season.

Tracker was previously renewed for Season 2 . It will return to CBS this fall in its new, Sundays-at-8 time slot , where it lead into Season 5 of Queen Latifah’s The Equalizer . A premiere date has not yet been announced.

Morrison’s Tracker episode airs Sunday, May 19 at 9 pm on CBS (and streams next day on Paramount+). Scroll down for additional photos, then hit the comments and tell us if you’ll be watching.

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