In the second episode, A'ale Ma'a Wau, of Season 4 of Hawaii Five-O, Tim Daly will be guest starring as a Texas ranger looking for his missing daughter.

Daly's character visits Hawaii in search of his daughter and crosses paths with the Hawaii Five-O team of Steve McGarrett and Danny Williams, who are looking into a murder investigation. The synopsis of the episode also suggests that Adam Noshimuri (Ian Anthony Dale) and Kono Kalakaua (Zulu)  will run into problems and find themselves fighting for their lives.

"When Hawaii's best learns you don't mess with Texas," the voice-over defines the episode in the teaser.

The tag-line is corroborated with a joke as McGarrett asks a fellow officer to "saddle up," and Daly responds in a condescending tone, "Saddle up, really?"

In the premiere of season 2, Aloha ke kahi I ke kahi, which aired on Sept. 27, the major reveal was about the relationship between Wo Fat and McGarrett toward the end, suggesting they might be half brothers. Chi McBride made his debut as SWAT captain Grover. There was also a hostage situation at the headquarters with gunmen storming the offices not only looking for one of their men, who had been held for interrogation, but get some classified information out of the team's main computer. The SWAT team led by Grover, surveyed the situation from outside the headquarters. The team eventually got itself out of the predicament by nabbing the intruders and securing the headquarters.

A'ale Ma'a Wau will air on Oct. 4 at 8 p.m. E.T. on CBS.

Watch the teaser here:

Tags: Hawaii Five-O Season 4 CBS