Arnold is back for a fourth season, and is still oblivious to Helga’s undying love for him. But her secret is in jeopardy. First, when Big Bob’s parrot overhears, and then can’t stop repeating, a love poem she writes about her football-headed love. Then, Helga sleepwalks…directly to Sunset Arms, with the intention of confessing her love to Arnold in her slumber. Meanwhile, Arnold continues to give advice to everyone who will listen, which isn’t always a good thing - when Grandpa admits he never finished grade school, Arnold convinces him to fulfill his dream – but he didn’t realize Grandpa would be placed in his class! All of this and more, including Arnold’s continued attempts to woo Lila, in Season 4 of Hey Arnold!