Steel Serpent

Early Life
Davos Kung was the son of Lei Kung and adoptive big brother of Danny Rand also known as Iron Fist. He was trained in K'un Lun with Rand to fight the Hand however once Danny left his post, this caused The Hand to attack and destroy K'un Kun which left Davos incredibly betrayed by his brother for letting it happen.

Joining Nathaniel Malick
In an Altered Timeline, Nathaniel Malick was able to recruit him to join his cause in destroying an altered Sheild which came for an altered past. Davos swore loyalty to Malick but after Talbot's death, he began to question whether or not he can defeat which them which left Davos to doubt his superior strength. During the ongoing conflict, Davos and Bushmaster were both ordered by Malick to take care of Luke Cage and Iron Fist. Seeing Iron Fist made Davos extremely angry. He then attacked them but were eventually defeated due to their superior skills. At the end of the battle, Davos chose to retreat and went into hiding however once he was found by his brother, he was captured. During the Battle of The Chronicom Fleet, Davos was engaged in a duel with Iron Fist but was defeated but Davos was able to critically wound him. During his imprisonment, having learned of Malick's Death and destruction of the Fleet, Davos managed to escape and went disappeared shortly after.