Watch Lassie's Great Adventure (1963) (1963) HD Full Movie Free on solarmovie.do. Watch Lassie's Great Adventure (1963) (1963) online free. While in Canada Timmy and Lassie encounter a downed hot air ballonist. By accident they end up in th...While in Canada Timmy and Lassie encounter a downed hot air ballonist. By accident they end up in the balloon which takes them into the wilderness. The young boy and his dog must find a way to survive even fending off a wild pig.