The narrative follows Arthur Pendennis from his provincial upbringing through education and entry into London society, tracing his romantic entanglements, friendships, and family troubles. Episodes mix comic social satire and earnest moral observation as he makes mistakes, faces financial and emotional reversals, and gradually matures. Interwoven scenes depict manners, institutions, and a range of vivid characters, balancing sentimental episodes with incisive commentary on ambition, reputation, and the costs of social advancement.