Part of the reason Hawaii Five-O captures such rabid fan loyalty is that the first 15 minutes has everything needed to keeps eyes glued to the screen. This week’s second episode of Season 4 starts off with Kono (Grace Park) and Adam (Ian Anthony Dale) under assault with their discreet location known by the terrorist group, NLM, and the toughest kickboxing lady cop known to man fighting her way to safety with some machine gun mastery, too, before the pair run for their lives. Tim Daly guest stars as a long tall cowboy from Texas, later revealed as Ranger, Ray Harper, who takes care of his airport greeter in short order, but leaves him alive. It’s clear he is a man on a mission, but is it for good cause? Danny’s beloved daughter, Grace (Teilor Grubbs), has too many bosses around the baseball diamond between her dad (Scott Caan) and uncle Steve (Alex O’Loughlin) providing too much advice on how to swing. Besides the case, McGarrett has another situation to shake out from the past with Catherine (Michelle Borth).
Danny notices the handoff of the letter from the DNA test Steve ordered Max (Masi Oka) to perform, but the results do not reveal the brotherly connection Steve thinks, or so it seems. Danny tries to persuade Steve that his mother may have had a more mellow role as a mediator to end the “blood feud,” but Steve knows better. Adam tries to persuade Kono to leave China, but she refuses to “play defense” and leave him. Chin Ho Kelly (Daniel Dae Kim) is showing off the team’s newly installed “super table” for tracking down perpetrators with the touchscreen, when an old acquaintance, Lt. Commander Billy Harrington (Justin Bruening) turns up for a private chat. It turns out that Billy is Catherine’s old boyfriend, who now has his own private security business. He has offered Catherine a job perfectly suited to her skills, but he knows she will not accept without Steve’s blessing. The two men leave their room with no hard feelings, but Steve wonders why Catherine couldn’t tell him first. Catherine insists she wasn’t ready, and wanted time to make the choice her own.
In typical fashion when he’s around machines of speed, Lt. Commander McGarrett doesn’t waste a split second taking the driver’s seat of Danny’s new car, and airing it out. All the while, Danny is advising Steve that Catherine needs to take a job away from Billy, in a “testosterone free” environment. When Steve explains that Catherine has turned down the job, Danny celebrates it as a good thing for his buddy. The team finally gets the lead on the identity of Ray Parker, but by that time, his greater from the airport, Michael Maki (Bobby Foley) has been found bound and drowned. Parker is still head-hunting, going to the home of another lowlife sort, Tom Acuna (Marcus Natividad), taking him captive along with a jar of peanut butter. The team makes it to the Acuna apartment, but Parker has taken him to a cane field, and decided that peanut butter makes a terrific deadly weapon, slathering it all over his bad guy as bait for the rats, before Acuna surrenders what he knows. A lit cigarette nearly means a lift to the moon for another young man Harper goes after, but instead, McGarrett and Williams haul the two into headquarters. Steve takes Harper on, initially insulting his techniques on disposing bodies, before discovering that he’s truly a dad on a mission to find his daughter, whose picture as a young girl is tucked inside his hat. Danny is questioning his subject, Carl Jacobson (Brando Eaton), who hardly knew the missing girl, and whose only misfortune seems to be that he agreed to be the deliverer of cash to the wrong people, with Harper’s daughter coming along before becoming their captive. Harper divulges that his daughter desperately pleaded for a trip to Hawaii with friends, but in truth, when off to be with a boyfriend, and her call promised on arrival never came. McGarrett and Williams make a threesome with Harper, going to Acuna, reminding him, he’ll be next on the list to die without their protection, and he surrenders the location. Jacobson agrees to be wired for a drop-off, but when he asks where Amanda is, he surrounded by gun toting terrors, and the news “I got a better deal– I sold her.” Danny and Steve, as well as dad, don’t let things go further, surrounding the place and the perpetrators, before going to the shipping docks.
Searching among the maze of blue containers, Harper hears the cry of his girl, and the two embrace and forgiveness. The final scene has both coaches in accord at Grace’s baseball game, reminding her to “just have fun” and relax, as it seems they cannot do. Steve tells Catherine to take the job with Billy, assuring her “we’re good” for the future. She responds with the most lasting kiss thus far on the whole Hawaii Five-O series, so long, it even stops the game. “There’s no kissing in baseball,” Danny teases, just before Grace hits a glorious home run.