Their indoctrination ceremony is cut short when Azgeda blows up Mount Weather, killing several people. Clarke informs them that the only way to prevent a war is for Skaikru to become the thirteenth clan and be put under the command of Lexa. Abby and Clarke are reunited in Ye Who Enter Here when Abby and Marcus Kane travel to Polis to negotiate a peace treaty. In Wanheda (Part 1) we learn that Abby has been searching for Clarke for three months, without success. By Blood Must Have Blood (Part 2), Abby has come to realize the difficult choices her daughter has had to make are not so different than the choices she made on The Council and tells her daughter that maybe there are no good guys. In Rubicon, when Abby finds out that Clarke knew ahead of time about the bombing of Tondc, she is appalled that her daughter would do such a thing and begs her to not forget they are the good guys. Tensions escalate in Coup de GrР“Сћce when Clarke tells her mother that even though Abby is the Chancellor, Clarke is the one in charge. Abby often disagrees with the decisions Clarke makes in regards to the people. Clarke goes behind Abby's back to the point of usurping her authority on numerous occasions. When they are reunited in Human Trials, Clarke is happy to see her but their relationship is strained. When Clarke believes her mother to be dead in the Exodus ship crash, she is devastated. Clarke truly believes she will never be able to forgive her mother for turning in her father. Abigail tries to apologizes explain his death was never supposed to happen.

When Raven Reyes makes contact with the Ark in Contents Under Pressure, Clarke confronts her mother and tells her she knows the truth. To punish her mother for her father's death, she takes her wristband off, letting Abigail believe her to be dead. This causes a rift between Clarke and her mother. While on Earth, Clarke learns the truth about her mother's involvement in her father's death in Earth Kills.

After, Abigail closely watches over Clarke's vitals. Before Clarke is sent down to Earth in the Pilot, Abigail tells her to be safe and that she loves her.

Abby fine ready