Gabriel Hogan

When an enraged gunman takes a hostage in a public square, the team must take drastic action and deal with the consequences.

Insurgents in Sudan attack volunteer doctors -- including the man married to DiNozzo's ex-girlfriend, Jeanne Benoit.

When Tim's young racehorse Cisco is stolen on the way to his maiden race, Amy and Ty get help tracking him down from an unlikely source - Ty's step-father, Wade.

Ty struggles to deal with the fact that Amy has found the engagement ring and has to decide how and whether he is going to propose to her or not.

When Amy works with a chuck wagon horse she discovers an impediment that could put the entire team in danger and change the dynamics of a prominent chuck wagon family.

When Amy bravely tries to heal an abused (and extremely violent) racehorse Ty and Jack think she's finally bitten off more than she can chew.