Watch School Trip Full Movie Free Online 123Movies. After completing his high school studies at the age of twenty-four, Óscar is an immature student, unable to afford alone his return to home during the summer season. Then he manages to convince Carlos, his young math teacher, to accompany him. Already in the family home, Óscar begins to behave in an increasingly unbalanced and irrational way. Meanwhile, his family will endeavor to see him as the reflection of the absent father figure.