An investigation into a murder is sent off track through the modification of computer information, and Five-O must use the latest technology to rescue the case.

McGarrett must prevent a mob war by tracking down an unknown hitman and his intended target.

A disturbed young man steals nerve gas to use against a visiting royal family as revenge for the death of his father.

A crooked contractor and a buildings inspector are under suspicion after the new Global Trade Center in Honolulu goes up in flames.

A escaped convict may well have a strong case of innocence, when Five-O become involved in the paranormal...

McGarrett is the top suspect in the murder of his girlfriend, and the evidence against him is seemingly overwhelming...

The daughter of Attorney General John Manicote is kidnapped by a deranged rapist and murderer, and Steve must not only contend with the criminal but Manicote's emotional state as well...