Prickle is about to try Professor Kap's new hair growing formula when the Blockheads grab the liquid. Gumby and Prickle set off in hot pursuit while the Blockheads keep their lead by shooting them with candy. Eventually, the liquid itself plays a role in the capture of the Blockheads. At last Prickle can try the formula but he is in for quite a surprise.
Gumby 1964 - A Hair Raising Adventure