Eight-year-old aardvark Arthur Read and his friends encounter the typical obstacles of third-grade life, including their tough teacher Mr. Ratburn, bullies, difficult siblings and ties between friends.
Heartland's future is put in jeopardy when Lou mistakenly sends Mrs. Roach's horse home before his fear of traffic is cured. Val Stanton spreads gossip. Amy has doubts about her abilities. Ty's probation officer pays a visit.