Synopsis
A mysterious fireball is seen over Worksop and Guy begins to talk about his invisible alien friend, Plop-Bop. The peasants and the Merry Men are also thinking about life on other planets, while King John is concerned about the defence implications, which means that the Sheriff has to raise more money from the peasants to defend against invasion by space carriage. The only things the peasants have left to lose are the clothes on their backs, which are promptly taken, causing Marian to harness the alien mania herself.

Maid Marian and Her Merry Men | S4E7: Journey to the Bottom of the Forest
Rabies is lazy, so much so that many of the Merry Men's plans simply do not work because of him. However, the robbery of a battleship and its subsequent launch take the Merry Men to the parallel universe of Engyland, where Rabies' arrival has been eagerly awaited by the good people of Workflop, particularly the Nottyman, to save them from the wicked witch.

Maid Marian and Her Merry Men | S4E6: The Nice Sumatran
Marian attempts to scare off King John, who is actually scared off, surrendering his crown to Guy. He takes refuge with the Merry Men, who reluctantly decide to follow the example of the Nice Sumatran towards unfortunate rich people and agree to let him stay. However, relations with the new guest deteriorate and Marian realises she has to scare Guy into surrendering the crown to King John again, which requires an unlikely alliance with the Sheriff.