Nephi's Daughter is a supporting character in "Journey to the Promised Land."
She is never mentioned by name, not even in the end credits.
It was mentioned in a flashback that she was born in a desert (which took place between the story of the tree of life and this one) soon after her grandfather Lehi found a Liahona outside his tent.
At the beginning of the story proper, Nephi's daughter assumes the land of Bountiful to be the Promised Land because she likes it a lot better than the desert. She learns about the Liahona as evidence that the land is not where the Lord wanted them to stay as their final home.
Much later, Nephi's daughter and her uncle Jacob are helping her father with building material for the ship.
For the final part, she helps her mother and the other women with the sail.
As the ship starts sailing, she is shown to enjoy the part where her uncle Sam (no reference to a patriotic character intended) pulls the tiller to the south, but shows concern when her uncle Jacob gets seasick.
During the storm, Nephi's daughter cries into her mother's arms, fearing her bound father's death. This brings tears to her eyes too.
When her uncles Laman and Lemuel free Nephi, apologize to him, and beg him to stop the storm, and he prays for the storm and waves to stop, Nephi's daughter is among those happy about it, and to be reaching the promised land.
She is shown praying with the others as thanks for arriving safely.