The Best Episodes Written By Carol Barbee

It's Christmas in Hawaii, but instead of celebrating, Five-0 is negotiating a hostage situation when the man who killed McGarrett's father resurfaces. The murderer, Victor Hesse, threatens to detonate an explosive that he's strapped to Chin Ho's chest.

When the sole witness in a high-profile murder case disappears, Five-0 must head into the jungle to locate and protect her from assassins who are closing in fast.

An 18-year old in need of a double-lung transplant, struggles to survive as the team runs into an obstacle that may prevent her from being eligible for the procedure.

The battle with New Bern ensues, with Jericho residents out-manned and out-gunned, but not outsmarted. Jericho gains the upper hand but suffers a significant casualty. A friend of Jake's sends help from an unexpected source.

When the CEO of a successful surf company is murdered, Kono revisits her past; Five-0 is thrown into the varied but interconnected worlds of North Shore surfing.

Following the Rangers' decision to take justice into their own hands, Major Beck goes to extreme measures to prove he's in complete control of the town, while Hawkins receives a call from Chavez telling him that it's time to transport the bomb.

The life-altering events surrounding Mark's past come into focus. Nicole struggles to give Dion his dream birthday. Esperanza makes a discovery.

While members of the 2nd Mass attempt to dig out a shot-down Beamer, Tom and a small team follow the Volm to a supply cache in search of equipment to expedite the process. Along the way, they encounter a friend, and must decide whether or not to trust her. Back at camp, Maggie and Ben grow closer as he teaches her to hone her new skills, while Pope and Sara continue to clash, resulting in a fight from which they may never recover.

Some of the residents of Jericho are concerned that Gray's actions may actually make Gray the new mayor. In other news, Mitchell claims that Jonah is the killer under much speculation.

When Martin comes in contact with a homeless man who possesses the same obsession with numbers as Jake, he sets out on a series of seemingly unrelated tasks that connect an abused African woman, a group of African boys entering a dance competition and an outgoing woman at California’s famed Coachella Valley Music and Arts Festival. Meanwhile, Teller pays a visit to Jake’s board-and-care facility and emotions run high for Clea.

When Dash discovers Lily didn't leave the notebook in their prearranged spot, he tries to track her down using the unique footwear she left behind.

The Espheni reveal their new plan to Tom, and he is faced with an impossible decision. Meanwhile, Weaver and Pope investigate a way out of the Espheni prison, while Matt struggles to hide his true allegiance from the “Team Leaders” at the Espheni Youth Camp. Elsewhere, Anne leads an exhausting search for her daughter Lexi, while Ben’s concerns about Lexi’s increasing powers uncovers a devastating secret she’s been keeping.

After Lily shares the memory of her worst Christmas ever, Dash devises a late-night challenge that pushes her far outside her comfort zone.

Martin attempts to find Teller’s mysterious workshop and winds up aiding another professor, Logan, to win big at poker. Meanwhile, a young Italian man creates a viral video to track down the love of his life, whom he only met in passing, and a city slicker who plans to sell off his dead father’s ranch, winds up learning a lesson from a horse that makes him appreciate the rural life his father chose. Then, Martin’s sister-in-law, Abigail Kelsey, visits Clea and Jake at the board-and-care facility, much to Martin’s dismay.

With the crooked man closing in and a final confrontation seemingly inevitable, a terrified Nicole tries to protect Dion by fleeing the city.

Following the battle of New Bern, Jericho begins the rebuilding process, while the Cheyenne government shows a particular interest in the town. While the dispute between Jericho and New Bern is being sorted out by the Cheyenne government, Heather returns. Meanwhile, an old friend of Rob comes to Jericho.

In the first part of a two-part season finale, the Aster Corporation increases its interest in Jake, which forces Martin to join forces with Abigail Kelsey. When Avram convinces Martin that Jake and Amelia are connected, Martin begins a quest to uncover the truth. Meanwhile, the situation is intensified when Lucy, a mother whose daughter shares the same gift as Jake, becomes involved in the mission and the seemingly unrelated events are tied together.

Widowed mom Nicole struggles to raise her only child Dion, not knowing the second-grader possesses powers beyond anyone's comprehension.

Bruce plans a family trip to the cabin but Laurie has other ideas about keeping her plans with Doug. Roger and Janet start seeing a therapist.