Complex sentence: On March 9,2014, a mother, not of age, which part of her family tried to flee to Trinidad and Tobago, is arrested when getting off a plane in (Calgary) is brought back to Ontario with her baby.
Split into simpler sentences: On March 9,2014, a mother, not of age, with part of her family, tries to flee to Trinidad and Tobago. She is arrested when getting off a plane in (Calgary) and brought back to Ontario with her baby.