Her early storylines center on her integration and attempts to be accepted by the other characters. Due to her relation to Ari, Ziva's appearance and eventual assignment to Gibbs' team draws fierce resentment from team member Anthony DiNozzo, forensic specialist Abby Sciuto, and even from Gibbs himself when he learns that Director Shepard had assigned Ziva to his team without his knowledge. She later proves her worth in the same episode by using her training to save herself and Dr. Donald "Ducky" Mallard from Dr. Burns, a rogue member of the Smithsonian Anthropology Lab. This in turn causes the team to develop a newfound respect for her and sets the foundation for Ziva's strong friendship with Ducky.