Ep 6. I Ka Wa Mamua (In a Time Past)

In Hawaii Five-0 season 3 episode 6, titled "I Ka Wa Mamua" (In a Time Past), the team finds themselves investigating a murder that has connections to a 20-year old case that was previously investigated by McGarrett's father. As they delve deeper into the case, they discover secrets from the past that could potentially change the course of their current investigation.

Meanwhile, McGarrett's mother, Doris, returns to Hawaii and is surprised to find her son has tracked her down. She enlists his help to keep safe from an old enemy who is still seeking revenge for a mission they both undertook decades ago.

As the team navigates the complexities of the murder case and Doris's history, they must also deal with personal issues. Danny struggles with his ex-wife's remarriage and the changes it brings to his relationship with their daughter. Chin Ho's relationship with his former fiancée is also put to the test.

The episode is full of twists and turns as the team works to connect the pieces of the puzzle and bring the killer to justice. With McGarrett's family history and the personal struggles of the team, "I Ka Wa Mamua" is a captivating episode that will keep viewers on the edge of their seats.